Finding the Third Proportional to 131,008 and 277,616

Step by Step Solution

1. Step 1: Write the proportion equation
   131,008 : 277,616 = 277,616 : x
2. Step 2: Convert to fraction form
   131,008/277,616 = 277,616/x
3. Step 3: Cross multiply
   131,008x = 277,616 × 277,616
4. Step 4: Simplify right side
   131,008x = 77,070,643,456
5. Step 5: Solve for x
   x = 77,070,643,456/131,008
6. Step 6: Final answer
   x = 588,289.60