OK you apparently gave it a really solid shot. I've never seen a pedal torn out of a crank this way, and suspect it was loose and backed out a ways before it hit.
Your best bet may be to see a dealer or bike co-op who can save the crank with a threaded insert. Properly done inserts make theads strnger than the original.
BTW- if you rammed the pedal that hard, you might consider replacing it. That's especially true if it's bent and wobbles in the repaired crank.
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