Finding the Third Proportional to 800,611 and 1,758,686

Step by Step Solution

1. Step 1: Write the proportion equation
   800,611 : 1,758,686 = 1,758,686 : x
2. Step 2: Convert to fraction form
   800,611/1,758,686 = 1,758,686/x
3. Step 3: Cross multiply
   800,611x = 1,758,686 × 1,758,686
4. Step 4: Simplify right side
   800,611x = 3,092,976,446,596
5. Step 5: Solve for x
   x = 3,092,976,446,596/800,611
6. Step 6: Final answer
   x = 3,863,269.99