Finding the Third Proportional to 2,678,622 and 5,622,580

Step by Step Solution

1. Step 1: Write the proportion equation
   2,678,622 : 5,622,580 = 5,622,580 : x
2. Step 2: Convert to fraction form
   2,678,622/5,622,580 = 5,622,580/x
3. Step 3: Cross multiply
   2,678,622x = 5,622,580 × 5,622,580
4. Step 4: Simplify right side
   2,678,622x = 31,613,405,856,400
5. Step 5: Solve for x
   x = 31,613,405,856,400/2,678,622
6. Step 6: Final answer
   x = 11,802,115.36