Finding the Third Proportional to 80,797.50 and 108,689.34

Step by Step Solution

1. Step 1: Write the proportion equation
   80,797.50 : 108,689.34 = 108,689.34 : x
2. Step 2: Convert to fraction form
   80,797.50/108,689.34 = 108,689.34/x
3. Step 3: Cross multiply
   80,797.50x = 108,689.34 × 108,689.34
4. Step 4: Simplify right side
   80,797.50x = 11,813,373,444.81
5. Step 5: Solve for x
   x = 11,813,373,444.81/80,797.50
6. Step 6: Final answer
   x = 146,209.64