Finding the Third Proportional to 374,612 and 815,746

Step by Step Solution

1. Step 1: Write the proportion equation
   374,612 : 815,746 = 815,746 : x
2. Step 2: Convert to fraction form
   374,612/815,746 = 815,746/x
3. Step 3: Cross multiply
   374,612x = 815,746 × 815,746
4. Step 4: Simplify right side
   374,612x = 665,441,536,516
5. Step 5: Solve for x
   x = 665,441,536,516/374,612
6. Step 6: Final answer
   x = 1,776,348.69