PAFusionsport10

Hey guys. I recently bought a 2010 Ford Fusion Sport with 76,000 miles on it. It was a R-Title, but the repair shop I trust that it was done right. Anyway it’s been great so far, already put 2k miles on it. So anyway, I shut it off Saturday and when I started it Monday it was running rough and threw an engine light. I put a scanner on it and it came back with a P0303 Cylinder #3 Misfire. I am assuming it’s a bad coil pack. But would love to hear opinions. The problem I have is I don’t know which one is Cylinder 3. It’s either back middle or back right. The google has showed me 2 different diagrams so I want to get it right. Can anyone help me out? Thanks in advance for the help. Mike