Geometry math problem

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A planes emergency beacon goes off, it's approx position is at a place equidistant from Miami and San Juan and on altitude from Miami, in the Bermuda triangle.

Locate where the plane has crashed

M(−80,26), H(−65,32), S(−66,1.

My working so far is I think I need to find the equal distance from point M to S (midpoint) which I've solved to be (-73,22) is this right? what do I do after this?

someone is saying that it crashed at (71.006,24.5) they found the bisectors of HS and MH and found the intersection, they didn't give me working can someone?