Finding the Third Proportional to 102,562.50 and 215,490

Step by Step Solution

1. Step 1: Write the proportion equation
   102,562.50 : 215,490 = 215,490 : x
2. Step 2: Convert to fraction form
   102,562.50/215,490 = 215,490/x
3. Step 3: Cross multiply
   102,562.50x = 215,490 × 215,490
4. Step 4: Simplify right side
   102,562.50x = 46,435,940,100
5. Step 5: Solve for x
   x = 46,435,940,100/102,562.50
6. Step 6: Final answer
   x = 452,757.49