Finding the Third Proportional to 1,822,690 and 3,988,496

Step by Step Solution

1. Step 1: Write the proportion equation
   1,822,690 : 3,988,496 = 3,988,496 : x
2. Step 2: Convert to fraction form
   1,822,690/3,988,496 = 3,988,496/x
3. Step 3: Cross multiply
   1,822,690x = 3,988,496 × 3,988,496
4. Step 4: Simplify right side
   1,822,690x = 15,908,100,342,016
5. Step 5: Solve for x
   x = 15,908,100,342,016/1,822,690
6. Step 6: Final answer
   x = 8,727,814.57