Finding the Third Proportional to 40,672.13 and 61,129.69

Step by Step Solution

1. Step 1: Write the proportion equation
   40,672.13 : 61,129.69 = 61,129.69 : x
2. Step 2: Convert to fraction form
   40,672.13/61,129.69 = 61,129.69/x
3. Step 3: Cross multiply
   40,672.13x = 61,129.69 × 61,129.69
4. Step 4: Simplify right side
   40,672.13x = 3,736,838,693.85
5. Step 5: Solve for x
   x = 3,736,838,693.85/40,672.13
6. Step 6: Final answer
   x = 91,877.14