Finding the Third Proportional to 61,339 and 131,422

Step by Step Solution

1. Step 1: Write the proportion equation
   61,339 : 131,422 = 131,422 : x
2. Step 2: Convert to fraction form
   61,339/131,422 = 131,422/x
3. Step 3: Cross multiply
   61,339x = 131,422 × 131,422
4. Step 4: Simplify right side
   61,339x = 17,271,742,084
5. Step 5: Solve for x
   x = 17,271,742,084/61,339
6. Step 6: Final answer
   x = 281,578.48