Finding the Third Proportional to 71,665.88 and 107,679.38

Step by Step Solution

1. Step 1: Write the proportion equation
   71,665.88 : 107,679.38 = 107,679.38 : x
2. Step 2: Convert to fraction form
   71,665.88/107,679.38 = 107,679.38/x
3. Step 3: Cross multiply
   71,665.88x = 107,679.38 × 107,679.38
4. Step 4: Simplify right side
   71,665.88x = 11,594,847,800.39
5. Step 5: Solve for x
   x = 11,594,847,800.39/71,665.88
6. Step 6: Final answer
   x = 161,790.36