Finding the Third Proportional to 394,297.50 and 861,567

Step by Step Solution

1. Step 1: Write the proportion equation
   394,297.50 : 861,567 = 861,567 : x
2. Step 2: Convert to fraction form
   394,297.50/861,567 = 861,567/x
3. Step 3: Cross multiply
   394,297.50x = 861,567 × 861,567
4. Step 4: Simplify right side
   394,297.50x = 742,297,695,489
5. Step 5: Solve for x
   x = 742,297,695,489/394,297.50
6. Step 6: Final answer
   x = 1,882,582.81