Finding the Third Proportional to 81,609.50 and 104,047.50

Step by Step Solution

1. Step 1: Write the proportion equation
   81,609.50 : 104,047.50 = 104,047.50 : x
2. Step 2: Convert to fraction form
   81,609.50/104,047.50 = 104,047.50/x
3. Step 3: Cross multiply
   81,609.50x = 104,047.50 × 104,047.50
4. Step 4: Simplify right side
   81,609.50x = 10,825,882,256.25
5. Step 5: Solve for x
   x = 10,825,882,256.25/81,609.50
6. Step 6: Final answer
   x = 132,654.68