Finding the Third Proportional to 42,716 and 68,022

Step by Step Solution

1. Step 1: Write the proportion equation
   42,716 : 68,022 = 68,022 : x
2. Step 2: Convert to fraction form
   42,716/68,022 = 68,022/x
3. Step 3: Cross multiply
   42,716x = 68,022 × 68,022
4. Step 4: Simplify right side
   42,716x = 4,626,992,484
5. Step 5: Solve for x
   x = 4,626,992,484/42,716
6. Step 6: Final answer
   x = 108,319.89