Finding the Third Proportional to 3,987,584 and 8,747,171

Step by Step Solution

1. Step 1: Write the proportion equation
   3,987,584 : 8,747,171 = 8,747,171 : x
2. Step 2: Convert to fraction form
   3,987,584/8,747,171 = 8,747,171/x
3. Step 3: Cross multiply
   3,987,584x = 8,747,171 × 8,747,171
4. Step 4: Simplify right side
   3,987,584x = 76,513,000,503,241
5. Step 5: Solve for x
   x = 76,513,000,503,241/3,987,584
6. Step 6: Final answer
   x = 19,187,809.09