Finding the Third Proportional to 81,587.25 and 126,086.63

Step by Step Solution

1. Step 1: Write the proportion equation
   81,587.25 : 126,086.63 = 126,086.63 : x
2. Step 2: Convert to fraction form
   81,587.25/126,086.63 = 126,086.63/x
3. Step 3: Cross multiply
   81,587.25x = 126,086.63 × 126,086.63
4. Step 4: Simplify right side
   81,587.25x = 15,897,837,003.89
5. Step 5: Solve for x
   x = 15,897,837,003.89/81,587.25
6. Step 6: Final answer
   x = 194,856.88