That is the purpose of shrinkwrap. Of course, you want to export the file in some other format than the native Creo files.
I have often run into this requirement and I do not find Pro|E to be easy about this. Shrinkwrap has always been a non-intuitive challenge and for the most part, I simply created a model in the assembly using the assembly's references. Depending on the complexity, this can be done in relatively short order with extrudes and revolves. typically, the customer only required critical interfaces and and overall envelope.