Finding the Third Proportional to 131,188 and 281,488

Step by Step Solution

1. Step 1: Write the proportion equation
   131,188 : 281,488 = 281,488 : x
2. Step 2: Convert to fraction form
   131,188/281,488 = 281,488/x
3. Step 3: Cross multiply
   131,188x = 281,488 × 281,488
4. Step 4: Simplify right side
   131,188x = 79,235,494,144
5. Step 5: Solve for x
   x = 79,235,494,144/131,188
6. Step 6: Final answer
   x = 603,984.31