Finding the Third Proportional to 1,002,448 and 2,161,390

Step by Step Solution

1. Step 1: Write the proportion equation
   1,002,448 : 2,161,390 = 2,161,390 : x
2. Step 2: Convert to fraction form
   1,002,448/2,161,390 = 2,161,390/x
3. Step 3: Cross multiply
   1,002,448x = 2,161,390 × 2,161,390
4. Step 4: Simplify right side
   1,002,448x = 4,671,606,732,100
5. Step 5: Solve for x
   x = 4,671,606,732,100/1,002,448
6. Step 6: Final answer
   x = 4,660,198.57