Finding the Third Proportional to 2,554,986 and 5,486,622

Step by Step Solution

1. Step 1: Write the proportion equation
   2,554,986 : 5,486,622 = 5,486,622 : x
2. Step 2: Convert to fraction form
   2,554,986/5,486,622 = 5,486,622/x
3. Step 3: Cross multiply
   2,554,986x = 5,486,622 × 5,486,622
4. Step 4: Simplify right side
   2,554,986x = 30,103,020,970,884
5. Step 5: Solve for x
   x = 30,103,020,970,884/2,554,986
6. Step 6: Final answer
   x = 11,782,068.85