Finding the Third Proportional to 1,396,673 and 2,231,523

Step by Step Solution

1. Step 1: Write the proportion equation
   1,396,673 : 2,231,523 = 2,231,523 : x
2. Step 2: Convert to fraction form
   1,396,673/2,231,523 = 2,231,523/x
3. Step 3: Cross multiply
   1,396,673x = 2,231,523 × 2,231,523
4. Step 4: Simplify right side
   1,396,673x = 4,979,694,899,529
5. Step 5: Solve for x
   x = 4,979,694,899,529/1,396,673
6. Step 6: Final answer
   x = 3,565,397.84