Finding the Third Proportional to 61,261.50 and 131,909

Step by Step Solution

1. Step 1: Write the proportion equation
   61,261.50 : 131,909 = 131,909 : x
2. Step 2: Convert to fraction form
   61,261.50/131,909 = 131,909/x
3. Step 3: Cross multiply
   61,261.50x = 131,909 × 131,909
4. Step 4: Simplify right side
   61,261.50x = 17,399,984,281
5. Step 5: Solve for x
   x = 17,399,984,281/61,261.50
6. Step 6: Final answer
   x = 284,028.05