Finding the Third Proportional to 3,987,589 and 8,747,182

Step by Step Solution

1. Step 1: Write the proportion equation
   3,987,589 : 8,747,182 = 8,747,182 : x
2. Step 2: Convert to fraction form
   3,987,589/8,747,182 = 8,747,182/x
3. Step 3: Cross multiply
   3,987,589x = 8,747,182 × 8,747,182
4. Step 4: Simplify right side
   3,987,589x = 76,513,192,941,124
5. Step 5: Solve for x
   x = 76,513,192,941,124/3,987,589
6. Step 6: Final answer
   x = 19,187,833.29