Finding the Third Proportional to 62,109 and 87,799.50

Step by Step Solution

1. Step 1: Write the proportion equation
   62,109 : 87,799.50 = 87,799.50 : x
2. Step 2: Convert to fraction form
   62,109/87,799.50 = 87,799.50/x
3. Step 3: Cross multiply
   62,109x = 87,799.50 × 87,799.50
4. Step 4: Simplify right side
   62,109x = 7,708,752,200.25
5. Step 5: Solve for x
   x = 7,708,752,200.25/62,109
6. Step 6: Final answer
   x = 124,116.51