Finding the Third Proportional to 1,446,919 and 2,128,561

Step by Step Solution

1. Step 1: Write the proportion equation
   1,446,919 : 2,128,561 = 2,128,561 : x
2. Step 2: Convert to fraction form
   1,446,919/2,128,561 = 2,128,561/x
3. Step 3: Cross multiply
   1,446,919x = 2,128,561 × 2,128,561
4. Step 4: Simplify right side
   1,446,919x = 4,530,771,930,721
5. Step 5: Solve for x
   x = 4,530,771,930,721/1,446,919
6. Step 6: Final answer
   x = 3,131,323.82