Finding the Third Proportional to 1,366,612 and 2,121,542

Step by Step Solution

1. Step 1: Write the proportion equation
   1,366,612 : 2,121,542 = 2,121,542 : x
2. Step 2: Convert to fraction form
   1,366,612/2,121,542 = 2,121,542/x
3. Step 3: Cross multiply
   1,366,612x = 2,121,542 × 2,121,542
4. Step 4: Simplify right side
   1,366,612x = 4,500,940,457,764
5. Step 5: Solve for x
   x = 4,500,940,457,764/1,366,612
6. Step 6: Final answer
   x = 3,293,502.81