Finding the Third Proportional to 1,439,678 and 3,332,939

Step by Step Solution

1. Step 1: Write the proportion equation
   1,439,678 : 3,332,939 = 3,332,939 : x
2. Step 2: Convert to fraction form
   1,439,678/3,332,939 = 3,332,939/x
3. Step 3: Cross multiply
   1,439,678x = 3,332,939 × 3,332,939
4. Step 4: Simplify right side
   1,439,678x = 11,108,482,377,721
5. Step 5: Solve for x
   x = 11,108,482,377,721/1,439,678
6. Step 6: Final answer
   x = 7,715,949.25