Finding the Third Proportional to 2,647,868 and 5,715,520

Step by Step Solution

1. Step 1: Write the proportion equation
   2,647,868 : 5,715,520 = 5,715,520 : x
2. Step 2: Convert to fraction form
   2,647,868/5,715,520 = 5,715,520/x
3. Step 3: Cross multiply
   2,647,868x = 5,715,520 × 5,715,520
4. Step 4: Simplify right side
   2,647,868x = 32,667,168,870,400
5. Step 5: Solve for x
   x = 32,667,168,870,400/2,647,868
6. Step 6: Final answer
   x = 12,337,159.13