Finding the Third Proportional to 131,199.75 and 281,063.25

Step by Step Solution

1. Step 1: Write the proportion equation
   131,199.75 : 281,063.25 = 281,063.25 : x
2. Step 2: Convert to fraction form
   131,199.75/281,063.25 = 281,063.25/x
3. Step 3: Cross multiply
   131,199.75x = 281,063.25 × 281,063.25
4. Step 4: Simplify right side
   131,199.75x = 78,996,550,500.56
5. Step 5: Solve for x
   x = 78,996,550,500.56/131,199.75
6. Step 6: Final answer
   x = 602,109.00