Finding the Third Proportional to 809,451 and 1,758,870

Step by Step Solution

1. Step 1: Write the proportion equation
   809,451 : 1,758,870 = 1,758,870 : x
2. Step 2: Convert to fraction form
   809,451/1,758,870 = 1,758,870/x
3. Step 3: Cross multiply
   809,451x = 1,758,870 × 1,758,870
4. Step 4: Simplify right side
   809,451x = 3,093,623,676,900
5. Step 5: Solve for x
   x = 3,093,623,676,900/809,451
6. Step 6: Final answer
   x = 3,821,878.87