Finding the Third Proportional to 1,988,448 and 3,110,631

Step by Step Solution

1. Step 1: Write the proportion equation
   1,988,448 : 3,110,631 = 3,110,631 : x
2. Step 2: Convert to fraction form
   1,988,448/3,110,631 = 3,110,631/x
3. Step 3: Cross multiply
   1,988,448x = 3,110,631 × 3,110,631
4. Step 4: Simplify right side
   1,988,448x = 9,676,025,218,161
5. Step 5: Solve for x
   x = 9,676,025,218,161/1,988,448
6. Step 6: Final answer
   x = 4,866,119.31