Finding the Third Proportional to 1,368,816 and 3,168,720

Step by Step Solution

1. Step 1: Write the proportion equation
   1,368,816 : 3,168,720 = 3,168,720 : x
2. Step 2: Convert to fraction form
   1,368,816/3,168,720 = 3,168,720/x
3. Step 3: Cross multiply
   1,368,816x = 3,168,720 × 3,168,720
4. Step 4: Simplify right side
   1,368,816x = 10,040,786,438,400
5. Step 5: Solve for x
   x = 10,040,786,438,400/1,368,816
6. Step 6: Final answer
   x = 7,335,380.68