Finding the Third Proportional to 81,841.50 and 123,869.25

Step by Step Solution

1. Step 1: Write the proportion equation
   81,841.50 : 123,869.25 = 123,869.25 : x
2. Step 2: Convert to fraction form
   81,841.50/123,869.25 = 123,869.25/x
3. Step 3: Cross multiply
   81,841.50x = 123,869.25 × 123,869.25
4. Step 4: Simplify right side
   81,841.50x = 15,343,591,095.56
5. Step 5: Solve for x
   x = 15,343,591,095.56/81,841.50
6. Step 6: Final answer
   x = 187,479.35