Finding the Third Proportional to 916,256 and 1,398,077

Step by Step Solution

1. Step 1: Write the proportion equation
   916,256 : 1,398,077 = 1,398,077 : x
2. Step 2: Convert to fraction form
   916,256/1,398,077 = 1,398,077/x
3. Step 3: Cross multiply
   916,256x = 1,398,077 × 1,398,077
4. Step 4: Simplify right side
   916,256x = 1,954,619,297,929
5. Step 5: Solve for x
   x = 1,954,619,297,929/916,256
6. Step 6: Final answer
   x = 2,133,267.67