Finding the Third Proportional to 142,531 and 222,422

Step by Step Solution

1. Step 1: Write the proportion equation
   142,531 : 222,422 = 222,422 : x
2. Step 2: Convert to fraction form
   142,531/222,422 = 222,422/x
3. Step 3: Cross multiply
   142,531x = 222,422 × 222,422
4. Step 4: Simplify right side
   142,531x = 49,471,546,084
5. Step 5: Solve for x
   x = 49,471,546,084/142,531
6. Step 6: Final answer
   x = 347,093.24