Finding the Third Proportional to 2,647,864 and 5,715,512

Step by Step Solution

1. Step 1: Write the proportion equation
   2,647,864 : 5,715,512 = 5,715,512 : x
2. Step 2: Convert to fraction form
   2,647,864/5,715,512 = 5,715,512/x
3. Step 3: Cross multiply
   2,647,864x = 5,715,512 × 5,715,512
4. Step 4: Simplify right side
   2,647,864x = 32,667,077,422,144
5. Step 5: Solve for x
   x = 32,667,077,422,144/2,647,864
6. Step 6: Final answer
   x = 12,337,143.23