Finding the Third Proportional to 62,499.75 and 89,312.25

Step by Step Solution

1. Step 1: Write the proportion equation
   62,499.75 : 89,312.25 = 89,312.25 : x
2. Step 2: Convert to fraction form
   62,499.75/89,312.25 = 89,312.25/x
3. Step 3: Cross multiply
   62,499.75x = 89,312.25 × 89,312.25
4. Step 4: Simplify right side
   62,499.75x = 7,976,678,000.06
5. Step 5: Solve for x
   x = 7,976,678,000.06/62,499.75
6. Step 6: Final answer
   x = 127,627.36