Finding the Third Proportional to 73,256 and 140,676

Step by Step Solution

1. Step 1: Write the proportion equation
   73,256 : 140,676 = 140,676 : x
2. Step 2: Convert to fraction form
   73,256/140,676 = 140,676/x
3. Step 3: Cross multiply
   73,256x = 140,676 × 140,676
4. Step 4: Simplify right side
   73,256x = 19,789,736,976
5. Step 5: Solve for x
   x = 19,789,736,976/73,256
6. Step 6: Final answer
   x = 270,144.93