Finding the Third Proportional to 131,023.50 and 280,723.50

Step by Step Solution

1. Step 1: Write the proportion equation
   131,023.50 : 280,723.50 = 280,723.50 : x
2. Step 2: Convert to fraction form
   131,023.50/280,723.50 = 280,723.50/x
3. Step 3: Cross multiply
   131,023.50x = 280,723.50 × 280,723.50
4. Step 4: Simplify right side
   131,023.50x = 78,805,683,452.25
5. Step 5: Solve for x
   x = 78,805,683,452.25/131,023.50
6. Step 6: Final answer
   x = 601,462.21