Finding the Third Proportional to 820,676 and 1,282,854

Step by Step Solution

1. Step 1: Write the proportion equation
   820,676 : 1,282,854 = 1,282,854 : x
2. Step 2: Convert to fraction form
   820,676/1,282,854 = 1,282,854/x
3. Step 3: Cross multiply
   820,676x = 1,282,854 × 1,282,854
4. Step 4: Simplify right side
   820,676x = 1,645,714,385,316
5. Step 5: Solve for x
   x = 1,645,714,385,316/820,676
6. Step 6: Final answer
   x = 2,005,315.60