Finding the Third Proportional to 2,686,670 and 5,676,580

Step by Step Solution

1. Step 1: Write the proportion equation
   2,686,670 : 5,676,580 = 5,676,580 : x
2. Step 2: Convert to fraction form
   2,686,670/5,676,580 = 5,676,580/x
3. Step 3: Cross multiply
   2,686,670x = 5,676,580 × 5,676,580
4. Step 4: Simplify right side
   2,686,670x = 32,223,560,496,400
5. Step 5: Solve for x
   x = 32,223,560,496,400/2,686,670
6. Step 6: Final answer
   x = 11,993,866.20