Finding the Third Proportional to 809,642 and 1,776,746

Step by Step Solution

1. Step 1: Write the proportion equation
   809,642 : 1,776,746 = 1,776,746 : x
2. Step 2: Convert to fraction form
   809,642/1,776,746 = 1,776,746/x
3. Step 3: Cross multiply
   809,642x = 1,776,746 × 1,776,746
4. Step 4: Simplify right side
   809,642x = 3,156,826,348,516
5. Step 5: Solve for x
   x = 3,156,826,348,516/809,642
6. Step 6: Final answer
   x = 3,899,039.76