Finding the Third Proportional to 131,280 and 267,376.50

Step by Step Solution

1. Step 1: Write the proportion equation
   131,280 : 267,376.50 = 267,376.50 : x
2. Step 2: Convert to fraction form
   131,280/267,376.50 = 267,376.50/x
3. Step 3: Cross multiply
   131,280x = 267,376.50 × 267,376.50
4. Step 4: Simplify right side
   131,280x = 71,490,192,752.25
5. Step 5: Solve for x
   x = 71,490,192,752.25/131,280
6. Step 6: Final answer
   x = 544,562.71