Finding the Third Proportional to 55,807.50 and 85,700.25

Step by Step Solution

1. Step 1: Write the proportion equation
   55,807.50 : 85,700.25 = 85,700.25 : x
2. Step 2: Convert to fraction form
   55,807.50/85,700.25 = 85,700.25/x
3. Step 3: Cross multiply
   55,807.50x = 85,700.25 × 85,700.25
4. Step 4: Simplify right side
   55,807.50x = 7,344,532,850.06
5. Step 5: Solve for x
   x = 7,344,532,850.06/55,807.50
6. Step 6: Final answer
   x = 131,604.76