Finding the Third Proportional to 221,242.50 and 482,670

Step by Step Solution

1. Step 1: Write the proportion equation
   221,242.50 : 482,670 = 482,670 : x
2. Step 2: Convert to fraction form
   221,242.50/482,670 = 482,670/x
3. Step 3: Cross multiply
   221,242.50x = 482,670 × 482,670
4. Step 4: Simplify right side
   221,242.50x = 232,970,328,900
5. Step 5: Solve for x
   x = 232,970,328,900/221,242.50
6. Step 6: Final answer
   x = 1,053,008.93