Finding the Third Proportional to 81,632.81 and 126,142.31

Step by Step Solution

1. Step 1: Write the proportion equation
   81,632.81 : 126,142.31 = 126,142.31 : x
2. Step 2: Convert to fraction form
   81,632.81/126,142.31 = 126,142.31/x
3. Step 3: Cross multiply
   81,632.81x = 126,142.31 × 126,142.31
4. Step 4: Simplify right side
   81,632.81x = 15,911,883,002.85
5. Step 5: Solve for x
   x = 15,911,883,002.85/81,632.81
6. Step 6: Final answer
   x = 194,920.19