Finding the Third Proportional to 371,914 and 813,123

Step by Step Solution

1. Step 1: Write the proportion equation
   371,914 : 813,123 = 813,123 : x
2. Step 2: Convert to fraction form
   371,914/813,123 = 813,123/x
3. Step 3: Cross multiply
   371,914x = 813,123 × 813,123
4. Step 4: Simplify right side
   371,914x = 661,169,013,129
5. Step 5: Solve for x
   x = 661,169,013,129/371,914
6. Step 6: Final answer
   x = 1,777,747.04