Finding the Third Proportional to 538,861.50 and 898,065

Step by Step Solution

1. Step 1: Write the proportion equation
   538,861.50 : 898,065 = 898,065 : x
2. Step 2: Convert to fraction form
   538,861.50/898,065 = 898,065/x
3. Step 3: Cross multiply
   538,861.50x = 898,065 × 898,065
4. Step 4: Simplify right side
   538,861.50x = 806,520,744,225
5. Step 5: Solve for x
   x = 806,520,744,225/538,861.50
6. Step 6: Final answer
   x = 1,496,712.50