Finding the Third Proportional to 117,628 and 254,048

Step by Step Solution

1. Step 1: Write the proportion equation
   117,628 : 254,048 = 254,048 : x
2. Step 2: Convert to fraction form
   117,628/254,048 = 254,048/x
3. Step 3: Cross multiply
   117,628x = 254,048 × 254,048
4. Step 4: Simplify right side
   117,628x = 64,540,386,304
5. Step 5: Solve for x
   x = 64,540,386,304/117,628
6. Step 6: Final answer
   x = 548,682.17