Finding the Third Proportional to 71,908.50 and 108,868.50

Step by Step Solution

1. Step 1: Write the proportion equation
   71,908.50 : 108,868.50 = 108,868.50 : x
2. Step 2: Convert to fraction form
   71,908.50/108,868.50 = 108,868.50/x
3. Step 3: Cross multiply
   71,908.50x = 108,868.50 × 108,868.50
4. Step 4: Simplify right side
   71,908.50x = 11,852,350,292.25
5. Step 5: Solve for x
   x = 11,852,350,292.25/71,908.50
6. Step 6: Final answer
   x = 164,825.44