Finding the Third Proportional to 711,456 and 1,085,256

Step by Step Solution

1. Step 1: Write the proportion equation
   711,456 : 1,085,256 = 1,085,256 : x
2. Step 2: Convert to fraction form
   711,456/1,085,256 = 1,085,256/x
3. Step 3: Cross multiply
   711,456x = 1,085,256 × 1,085,256
4. Step 4: Simplify right side
   711,456x = 1,177,780,585,536
5. Step 5: Solve for x
   x = 1,177,780,585,536/711,456
6. Step 6: Final answer
   x = 1,655,451.05