Finding the Third Proportional to 734,816 and 1,040,128

Step by Step Solution

1. Step 1: Write the proportion equation
   734,816 : 1,040,128 = 1,040,128 : x
2. Step 2: Convert to fraction form
   734,816/1,040,128 = 1,040,128/x
3. Step 3: Cross multiply
   734,816x = 1,040,128 × 1,040,128
4. Step 4: Simplify right side
   734,816x = 1,081,866,256,384
5. Step 5: Solve for x
   x = 1,081,866,256,384/734,816
6. Step 6: Final answer
   x = 1,472,295.45