Finding the Third Proportional to 131,631 and 284,261.50

Step by Step Solution

1. Step 1: Write the proportion equation
   131,631 : 284,261.50 = 284,261.50 : x
2. Step 2: Convert to fraction form
   131,631/284,261.50 = 284,261.50/x
3. Step 3: Cross multiply
   131,631x = 284,261.50 × 284,261.50
4. Step 4: Simplify right side
   131,631x = 80,804,600,382.25
5. Step 5: Solve for x
   x = 80,804,600,382.25/131,631
6. Step 6: Final answer
   x = 613,872.12