Finding the Third Proportional to 262,084.50 and 392,715

Step by Step Solution

1. Step 1: Write the proportion equation
   262,084.50 : 392,715 = 392,715 : x
2. Step 2: Convert to fraction form
   262,084.50/392,715 = 392,715/x
3. Step 3: Cross multiply
   262,084.50x = 392,715 × 392,715
4. Step 4: Simplify right side
   262,084.50x = 154,225,071,225
5. Step 5: Solve for x
   x = 154,225,071,225/262,084.50
6. Step 6: Final answer
   x = 588,455.52