Finding the Third Proportional to 2,686,668 and 5,676,576

Step by Step Solution

1. Step 1: Write the proportion equation
   2,686,668 : 5,676,576 = 5,676,576 : x
2. Step 2: Convert to fraction form
   2,686,668/5,676,576 = 5,676,576/x
3. Step 3: Cross multiply
   2,686,668x = 5,676,576 × 5,676,576
4. Step 4: Simplify right side
   2,686,668x = 32,223,515,083,776
5. Step 5: Solve for x
   x = 32,223,515,083,776/2,686,668
6. Step 6: Final answer
   x = 11,993,858.22