Finding the Third Proportional to 528,256 and 1,138,648

Step by Step Solution

1. Step 1: Write the proportion equation
   528,256 : 1,138,648 = 1,138,648 : x
2. Step 2: Convert to fraction form
   528,256/1,138,648 = 1,138,648/x
3. Step 3: Cross multiply
   528,256x = 1,138,648 × 1,138,648
4. Step 4: Simplify right side
   528,256x = 1,296,519,267,904
5. Step 5: Solve for x
   x = 1,296,519,267,904/528,256
6. Step 6: Final answer
   x = 2,454,338.93