Finding the Third Proportional to 1,478,389 and 3,207,734

Step by Step Solution

1. Step 1: Write the proportion equation
   1,478,389 : 3,207,734 = 3,207,734 : x
2. Step 2: Convert to fraction form
   1,478,389/3,207,734 = 3,207,734/x
3. Step 3: Cross multiply
   1,478,389x = 3,207,734 × 3,207,734
4. Step 4: Simplify right side
   1,478,389x = 10,289,557,414,756
5. Step 5: Solve for x
   x = 10,289,557,414,756/1,478,389
6. Step 6: Final answer
   x = 6,959,979.69