Finding the Third Proportional to 80,931.75 and 120,910.88

Step by Step Solution

1. Step 1: Write the proportion equation
   80,931.75 : 120,910.88 = 120,910.88 : x
2. Step 2: Convert to fraction form
   80,931.75/120,910.88 = 120,910.88/x
3. Step 3: Cross multiply
   80,931.75x = 120,910.88 × 120,910.88
4. Step 4: Simplify right side
   80,931.75x = 14,619,439,693.27
5. Step 5: Solve for x
   x = 14,619,439,693.27/80,931.75
6. Step 6: Final answer
   x = 180,639.11