Finding the Third Proportional to 31,249.50 and 66,952.50

Step by Step Solution

1. Step 1: Write the proportion equation
   31,249.50 : 66,952.50 = 66,952.50 : x
2. Step 2: Convert to fraction form
   31,249.50/66,952.50 = 66,952.50/x
3. Step 3: Cross multiply
   31,249.50x = 66,952.50 × 66,952.50
4. Step 4: Simplify right side
   31,249.50x = 4,482,637,256.25
5. Step 5: Solve for x
   x = 4,482,637,256.25/31,249.50
6. Step 6: Final answer
   x = 143,446.69