Finding the Third Proportional to 187,744 and 391,022

Step by Step Solution

1. Step 1: Write the proportion equation
   187,744 : 391,022 = 391,022 : x
2. Step 2: Convert to fraction form
   187,744/391,022 = 391,022/x
3. Step 3: Cross multiply
   187,744x = 391,022 × 391,022
4. Step 4: Simplify right side
   187,744x = 152,898,204,484
5. Step 5: Solve for x
   x = 152,898,204,484/187,744
6. Step 6: Final answer
   x = 814,397.29