Finding the Third Proportional to 2,564,784 and 3,987,180

Step by Step Solution

1. Step 1: Write the proportion equation
   2,564,784 : 3,987,180 = 3,987,180 : x
2. Step 2: Convert to fraction form
   2,564,784/3,987,180 = 3,987,180/x
3. Step 3: Cross multiply
   2,564,784x = 3,987,180 × 3,987,180
4. Step 4: Simplify right side
   2,564,784x = 15,897,604,352,400
5. Step 5: Solve for x
   x = 15,897,604,352,400/2,564,784
6. Step 6: Final answer
   x = 6,198,418.41