Finding the Third Proportional to 71,231.97 and 109,931.94

Step by Step Solution

1. Step 1: Write the proportion equation
   71,231.97 : 109,931.94 = 109,931.94 : x
2. Step 2: Convert to fraction form
   71,231.97/109,931.94 = 109,931.94/x
3. Step 3: Cross multiply
   71,231.97x = 109,931.94 × 109,931.94
4. Step 4: Simplify right side
   71,231.97x = 12,085,030,882.50
5. Step 5: Solve for x
   x = 12,085,030,882.50/71,231.97
6. Step 6: Final answer
   x = 169,657.40