Finding the Third Proportional to 31,708 and 73,422

Step by Step Solution

1. Step 1: Write the proportion equation
   31,708 : 73,422 = 73,422 : x
2. Step 2: Convert to fraction form
   31,708/73,422 = 73,422/x
3. Step 3: Cross multiply
   31,708x = 73,422 × 73,422
4. Step 4: Simplify right side
   31,708x = 5,390,790,084
5. Step 5: Solve for x
   x = 5,390,790,084/31,708
6. Step 6: Final answer
   x = 170,013.56