Finding the Third Proportional to 80,820 and 108,716

Step by Step Solution

1. Step 1: Write the proportion equation
   80,820 : 108,716 = 108,716 : x
2. Step 2: Convert to fraction form
   80,820/108,716 = 108,716/x
3. Step 3: Cross multiply
   80,820x = 108,716 × 108,716
4. Step 4: Simplify right side
   80,820x = 11,819,168,656
5. Step 5: Solve for x
   x = 11,819,168,656/80,820
6. Step 6: Final answer
   x = 146,240.64