Thanks for the replies, everyone. You are correct. I must fold because I can't give the shortstack a shot at second. I was looking at his perspective from a merely pot odds perspective, and had overlooked the possibility that this may be his best shot at second. I guess this hand intrigued me because I almost pushed and if I would have I win, guarantee second, and had a shot to win it. As it happened, ss doubled up with a hand I beat and won the next big showdown. I got booted in third...Oh, well, that is just results oriented thinking. I made the correct play.

That being established, I have not gotten many suggestions for what my push range should be in this situation. Suggestions for a pushing range in this situation?