Finding the Third Proportional to 2,564,760 and 3,987,144

Step by Step Solution

1. Step 1: Write the proportion equation
   2,564,760 : 3,987,144 = 3,987,144 : x
2. Step 2: Convert to fraction form
   2,564,760/3,987,144 = 3,987,144/x
3. Step 3: Cross multiply
   2,564,760x = 3,987,144 × 3,987,144
4. Step 4: Simplify right side
   2,564,760x = 15,897,317,276,736
5. Step 5: Solve for x
   x = 15,897,317,276,736/2,564,760
6. Step 6: Final answer
   x = 6,198,364.48