Finding the Third Proportional to 131,239.50 and 281,067.50

Step by Step Solution

1. Step 1: Write the proportion equation
   131,239.50 : 281,067.50 = 281,067.50 : x
2. Step 2: Convert to fraction form
   131,239.50/281,067.50 = 281,067.50/x
3. Step 3: Cross multiply
   131,239.50x = 281,067.50 × 281,067.50
4. Step 4: Simplify right side
   131,239.50x = 78,998,939,556.25
5. Step 5: Solve for x
   x = 78,998,939,556.25/131,239.50
6. Step 6: Final answer
   x = 601,944.84