Finding the Third Proportional to 62,892.50 and 85,458.50

Step by Step Solution

1. Step 1: Write the proportion equation
   62,892.50 : 85,458.50 = 85,458.50 : x
2. Step 2: Convert to fraction form
   62,892.50/85,458.50 = 85,458.50/x
3. Step 3: Cross multiply
   62,892.50x = 85,458.50 × 85,458.50
4. Step 4: Simplify right side
   62,892.50x = 7,303,155,222.25
5. Step 5: Solve for x
   x = 7,303,155,222.25/62,892.50
6. Step 6: Final answer
   x = 116,121.24