Finding the Third Proportional to 800,612 and 1,758,686

Step by Step Solution

1. Step 1: Write the proportion equation
   800,612 : 1,758,686 = 1,758,686 : x
2. Step 2: Convert to fraction form
   800,612/1,758,686 = 1,758,686/x
3. Step 3: Cross multiply
   800,612x = 1,758,686 × 1,758,686
4. Step 4: Simplify right side
   800,612x = 3,092,976,446,596
5. Step 5: Solve for x
   x = 3,092,976,446,596/800,612
6. Step 6: Final answer
   x = 3,863,265.16