The Unlikely Airport

Due to the unlikely population explosion in NW Middle Tennessee the construction of a new international airport has been proposed by the Tennessee legislature. The three cities this airport will primarily serve are Clarksville, Dickson and Big Sandy. In what town is the optimal location of the new airport?
1) Place points in each of the three cities. 2) Draw the corresponding triangle. 3) Find the midpoints of each side. 4) Construct at least two perpendicular bisectors. 5) Construct and label a point where the circumcenter is located. 6) Which town should be chosen for the new airport?