Finding the Third Proportional to 404,157 and 561,948

Step by Step Solution

1. Step 1: Write the proportion equation
   404,157 : 561,948 = 561,948 : x
2. Step 2: Convert to fraction form
   404,157/561,948 = 561,948/x
3. Step 3: Cross multiply
   404,157x = 561,948 × 561,948
4. Step 4: Simplify right side
   404,157x = 315,785,554,704
5. Step 5: Solve for x
   x = 315,785,554,704/404,157
6. Step 6: Final answer
   x = 781,343.77