Finding the Third Proportional to 1,428,678 and 1,945,593

Step by Step Solution

1. Step 1: Write the proportion equation
   1,428,678 : 1,945,593 = 1,945,593 : x
2. Step 2: Convert to fraction form
   1,428,678/1,945,593 = 1,945,593/x
3. Step 3: Cross multiply
   1,428,678x = 1,945,593 × 1,945,593
4. Step 4: Simplify right side
   1,428,678x = 3,785,332,121,649
5. Step 5: Solve for x
   x = 3,785,332,121,649/1,428,678
6. Step 6: Final answer
   x = 2,649,534.83