Finding the Third Proportional to 377,104.50 and 813,218

Step by Step Solution

1. Step 1: Write the proportion equation
   377,104.50 : 813,218 = 813,218 : x
2. Step 2: Convert to fraction form
   377,104.50/813,218 = 813,218/x
3. Step 3: Cross multiply
   377,104.50x = 813,218 × 813,218
4. Step 4: Simplify right side
   377,104.50x = 661,323,515,524
5. Step 5: Solve for x
   x = 661,323,515,524/377,104.50
6. Step 6: Final answer
   x = 1,753,687.68