Finding the Third Proportional to 2,560,996.50 and 5,487,078

Step by Step Solution

1. Step 1: Write the proportion equation
   2,560,996.50 : 5,487,078 = 5,487,078 : x
2. Step 2: Convert to fraction form
   2,560,996.50/5,487,078 = 5,487,078/x
3. Step 3: Cross multiply
   2,560,996.50x = 5,487,078 × 5,487,078
4. Step 4: Simplify right side
   2,560,996.50x = 30,108,024,978,084
5. Step 5: Solve for x
   x = 30,108,024,978,084/2,560,996.50
6. Step 6: Final answer
   x = 11,756,371.00