Yes. Configure the wireless interface on the PC to operate in "ad hoc" mode and then either share the wired (internet) interface via ICS, or enable bridging. ICS will be simpler to configure because it removes the need for a (separate) DHCP server somewhere on that network.
Also, your keyboard appears to have developed a strange flaw which causes the first letter of every word to be capitalised
(Seriously, when you're asking for help, common sense dictates that you maximise your chances of somebody bothering to read your question if you make it as painless as possible. REaDing TexT wiTH OdD oR PrEtTy CAPitALisATion iS a pAiN IN tHe UsB soCkEt.)