You can put this solution on YOUR website! This question is not complete. To find x, we need to know the distance from P to M and M to Q.
For example:
If PM = x^2 and MQ = 9, we can can find x, by setting x^2 to = 9 and then using our knowledge of algebra to find x. However, you did not provide this data and so this is missing information in your question. Go back and repost the entire question WORD FOR WORD.