Finding the Third Proportional to 1,018,662 and 2,121,039

Step by Step Solution

1. Step 1: Write the proportion equation
   1,018,662 : 2,121,039 = 2,121,039 : x
2. Step 2: Convert to fraction form
   1,018,662/2,121,039 = 2,121,039/x
3. Step 3: Cross multiply
   1,018,662x = 2,121,039 × 2,121,039
4. Step 4: Simplify right side
   1,018,662x = 4,498,806,439,521
5. Step 5: Solve for x
   x = 4,498,806,439,521/1,018,662
6. Step 6: Final answer
   x = 4,416,387.81