Finding the Third Proportional to 840,838 and 1,305,540

Step by Step Solution

1. Step 1: Write the proportion equation
   840,838 : 1,305,540 = 1,305,540 : x
2. Step 2: Convert to fraction form
   840,838/1,305,540 = 1,305,540/x
3. Step 3: Cross multiply
   840,838x = 1,305,540 × 1,305,540
4. Step 4: Simplify right side
   840,838x = 1,704,434,691,600
5. Step 5: Solve for x
   x = 1,704,434,691,600/840,838
6. Step 6: Final answer
   x = 2,027,066.68