Finding the Third Proportional to 865,848 and 1,265,256

Step by Step Solution

1. Step 1: Write the proportion equation
   865,848 : 1,265,256 = 1,265,256 : x
2. Step 2: Convert to fraction form
   865,848/1,265,256 = 1,265,256/x
3. Step 3: Cross multiply
   865,848x = 1,265,256 × 1,265,256
4. Step 4: Simplify right side
   865,848x = 1,600,872,745,536
5. Step 5: Solve for x
   x = 1,600,872,745,536/865,848
6. Step 6: Final answer
   x = 1,848,907.37