Finding the Third Proportional to 1,012,831 and 1,603,811

Step by Step Solution

1. Step 1: Write the proportion equation
   1,012,831 : 1,603,811 = 1,603,811 : x
2. Step 2: Convert to fraction form
   1,012,831/1,603,811 = 1,603,811/x
3. Step 3: Cross multiply
   1,012,831x = 1,603,811 × 1,603,811
4. Step 4: Simplify right side
   1,012,831x = 2,572,209,723,721
5. Step 5: Solve for x
   x = 2,572,209,723,721/1,012,831
6. Step 6: Final answer
   x = 2,539,623.81