Finding the Third Proportional to 64,952.16 and 139,573.69

Step by Step Solution

1. Step 1: Write the proportion equation
   64,952.16 : 139,573.69 = 139,573.69 : x
2. Step 2: Convert to fraction form
   64,952.16/139,573.69 = 139,573.69/x
3. Step 3: Cross multiply
   64,952.16x = 139,573.69 × 139,573.69
4. Step 4: Simplify right side
   64,952.16x = 19,480,814,242.35
5. Step 5: Solve for x
   x = 19,480,814,242.35/64,952.16
6. Step 6: Final answer
   x = 299,925.60