Finding the Third Proportional to 3,288,478 and 7,174,554

Step by Step Solution

1. Step 1: Write the proportion equation
   3,288,478 : 7,174,554 = 7,174,554 : x
2. Step 2: Convert to fraction form
   3,288,478/7,174,554 = 7,174,554/x
3. Step 3: Cross multiply
   3,288,478x = 7,174,554 × 7,174,554
4. Step 4: Simplify right side
   3,288,478x = 51,474,225,098,916
5. Step 5: Solve for x
   x = 51,474,225,098,916/3,288,478
6. Step 6: Final answer
   x = 15,652,902.38