Finding the Third Proportional to 81,555 and 126,043.50

Step by Step Solution

1. Step 1: Write the proportion equation
   81,555 : 126,043.50 = 126,043.50 : x
2. Step 2: Convert to fraction form
   81,555/126,043.50 = 126,043.50/x
3. Step 3: Cross multiply
   81,555x = 126,043.50 × 126,043.50
4. Step 4: Simplify right side
   81,555x = 15,886,963,892.25
5. Step 5: Solve for x
   x = 15,886,963,892.25/81,555
6. Step 6: Final answer
   x = 194,800.61