Finding the Third Proportional to 1,420,416 and 3,102,912

Step by Step Solution

1. Step 1: Write the proportion equation
   1,420,416 : 3,102,912 = 3,102,912 : x
2. Step 2: Convert to fraction form
   1,420,416/3,102,912 = 3,102,912/x
3. Step 3: Cross multiply
   1,420,416x = 3,102,912 × 3,102,912
4. Step 4: Simplify right side
   1,420,416x = 9,628,062,879,744
5. Step 5: Solve for x
   x = 9,628,062,879,744/1,420,416
6. Step 6: Final answer
   x = 6,778,340.20