Finding the Third Proportional to 809,944 and 1,287,256

Step by Step Solution

1. Step 1: Write the proportion equation
   809,944 : 1,287,256 = 1,287,256 : x
2. Step 2: Convert to fraction form
   809,944/1,287,256 = 1,287,256/x
3. Step 3: Cross multiply
   809,944x = 1,287,256 × 1,287,256
4. Step 4: Simplify right side
   809,944x = 1,657,028,009,536
5. Step 5: Solve for x
   x = 1,657,028,009,536/809,944
6. Step 6: Final answer
   x = 2,045,855.03