Finding the Third Proportional to 131,158 and 281,422

Step by Step Solution

1. Step 1: Write the proportion equation
   131,158 : 281,422 = 281,422 : x
2. Step 2: Convert to fraction form
   131,158/281,422 = 281,422/x
3. Step 3: Cross multiply
   131,158x = 281,422 × 281,422
4. Step 4: Simplify right side
   131,158x = 79,198,342,084
5. Step 5: Solve for x
   x = 79,198,342,084/131,158
6. Step 6: Final answer
   x = 603,839.20