Finding the Third Proportional to 221,929.50 and 485,376

Step by Step Solution

1. Step 1: Write the proportion equation
   221,929.50 : 485,376 = 485,376 : x
2. Step 2: Convert to fraction form
   221,929.50/485,376 = 485,376/x
3. Step 3: Cross multiply
   221,929.50x = 485,376 × 485,376
4. Step 4: Simplify right side
   221,929.50x = 235,589,861,376
5. Step 5: Solve for x
   x = 235,589,861,376/221,929.50
6. Step 6: Final answer
   x = 1,061,552.71