Finding the Third Proportional to 3,288,536 and 7,174,678

Step by Step Solution

1. Step 1: Write the proportion equation
   3,288,536 : 7,174,678 = 7,174,678 : x
2. Step 2: Convert to fraction form
   3,288,536/7,174,678 = 7,174,678/x
3. Step 3: Cross multiply
   3,288,536x = 7,174,678 × 7,174,678
4. Step 4: Simplify right side
   3,288,536x = 51,476,004,403,684
5. Step 5: Solve for x
   x = 51,476,004,403,684/3,288,536
6. Step 6: Final answer
   x = 15,653,167.37