Finding the Third Proportional to 2,560,356 and 5,500,386

Step by Step Solution

1. Step 1: Write the proportion equation
   2,560,356 : 5,500,386 = 5,500,386 : x
2. Step 2: Convert to fraction form
   2,560,356/5,500,386 = 5,500,386/x
3. Step 3: Cross multiply
   2,560,356x = 5,500,386 × 5,500,386
4. Step 4: Simplify right side
   2,560,356x = 30,254,246,148,996
5. Step 5: Solve for x
   x = 30,254,246,148,996/2,560,356
6. Step 6: Final answer
   x = 11,816,421.68