This can't be done in Word, which is not page layout software. It can be
fudged, but it's best to do this after editing is complete. You will have to
manually break a paragraph at the bottom of one page and continue it two
pages later (with all necessary formatting fudges if it's justified) and
insert the graphic inline on the intervening page. There's no point trying
to make the graphic wrapped because it will still have to be anchored to a
paragraph on the same page, and that paragraph, even if empty, will still
interrupt the text flow. A better solution, if acceptable, is to make the
graphic less than one page in size, allowing some of the document text to
appear on the same page. The graphic can then be anchored to that text,
which will wrap around it.

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Suzanne S. Barnhill
Microsoft MVP (Word)