Finding the Third Proportional to 71,902.50 and 108,859.50

Step by Step Solution

1. Step 1: Write the proportion equation
   71,902.50 : 108,859.50 = 108,859.50 : x
2. Step 2: Convert to fraction form
   71,902.50/108,859.50 = 108,859.50/x
3. Step 3: Cross multiply
   71,902.50x = 108,859.50 × 108,859.50
4. Step 4: Simplify right side
   71,902.50x = 11,850,390,740.25
5. Step 5: Solve for x
   x = 11,850,390,740.25/71,902.50
6. Step 6: Final answer
   x = 164,811.94