Finding the Third Proportional to 131,108 and 280,908

Step by Step Solution

1. Step 1: Write the proportion equation
   131,108 : 280,908 = 280,908 : x
2. Step 2: Convert to fraction form
   131,108/280,908 = 280,908/x
3. Step 3: Cross multiply
   131,108x = 280,908 × 280,908
4. Step 4: Simplify right side
   131,108x = 78,909,304,464
5. Step 5: Solve for x
   x = 78,909,304,464/131,108
6. Step 6: Final answer
   x = 601,864.91