Finding the Third Proportional to 1,842,643 and 3,987,110

Step by Step Solution

1. Step 1: Write the proportion equation
   1,842,643 : 3,987,110 = 3,987,110 : x
2. Step 2: Convert to fraction form
   1,842,643/3,987,110 = 3,987,110/x
3. Step 3: Cross multiply
   1,842,643x = 3,987,110 × 3,987,110
4. Step 4: Simplify right side
   1,842,643x = 15,897,046,152,100
5. Step 5: Solve for x
   x = 15,897,046,152,100/1,842,643
6. Step 6: Final answer
   x = 8,627,306.62