Finding the Third Proportional to 809,637 and 1,776,738

Step by Step Solution

1. Step 1: Write the proportion equation
   809,637 : 1,776,738 = 1,776,738 : x
2. Step 2: Convert to fraction form
   809,637/1,776,738 = 1,776,738/x
3. Step 3: Cross multiply
   809,637x = 1,776,738 × 1,776,738
4. Step 4: Simplify right side
   809,637x = 3,156,797,920,644
5. Step 5: Solve for x
   x = 3,156,797,920,644/809,637
6. Step 6: Final answer
   x = 3,899,028.73