Finding the Third Proportional to 3,317,568 and 7,158,144

Step by Step Solution

1. Step 1: Write the proportion equation
   3,317,568 : 7,158,144 = 7,158,144 : x
2. Step 2: Convert to fraction form
   3,317,568/7,158,144 = 7,158,144/x
3. Step 3: Cross multiply
   3,317,568x = 7,158,144 × 7,158,144
4. Step 4: Simplify right side
   3,317,568x = 51,239,025,524,736
5. Step 5: Solve for x
   x = 51,239,025,524,736/3,317,568
6. Step 6: Final answer
   x = 15,444,755.17