Nbr and size of speakers for a large conference room


Hello Forum Members,
I am very new to this domain and i was asked by my client to setup the sound system for a conference room of L:10.85 meters, W:9.77 meters and H: 8.55 meters. First row of people will be sitting at 2m from the projection screen (installed along the width of the room), while the last row is expected to be at 10m.
I am looking to mount two JBL 306P MkII 6" Powered Two-Way Studio Monitor (56W, Class-D, Sensitivity 92dB/1m, max continous SPL 92dB and max Peak SPL 110dB) and connect them to a small Yamaha MG06 6-Input Compact Stereo Mixer which has Stereo Balanced Outputs. I am thinking of mounting the speakers in the corners of the room, to the left and right of the projection screen, at a height of 1.5m (the bottom of the speaker will be at that height).
The speaker will be taking on a Shure lapel microphone connected to the Mixer and casually attendants would interact with him via a Shure Wireless Microphone.
Will the above setup work and people sitting at the front, middle and the back be able to hear well the presenter without being annoyed of very high "volume" or very low "volume", or i need to add more speakers towards the middle of the room?
Thank you in advance for any advice you may provide.
Best regards,
Charbel
cboueid
one suggestion would be to make the height of the speakers higher then the front row persons,  as to not blow them away but project over them to the back. rest seems ok just set up early and try it and move speakers etc if required.