Finding the Third Proportional to 3,288,540 and 7,174,670

Step by Step Solution

1. Step 1: Write the proportion equation
   3,288,540 : 7,174,670 = 7,174,670 : x
2. Step 2: Convert to fraction form
   3,288,540/7,174,670 = 7,174,670/x
3. Step 3: Cross multiply
   3,288,540x = 7,174,670 × 7,174,670
4. Step 4: Simplify right side
   3,288,540x = 51,475,889,608,900
5. Step 5: Solve for x
   x = 51,475,889,608,900/3,288,540
6. Step 6: Final answer
   x = 15,653,113.42