Finding the Third Proportional to 31,482 and 64,422

Step by Step Solution

1. Step 1: Write the proportion equation
   31,482 : 64,422 = 64,422 : x
2. Step 2: Convert to fraction form
   31,482/64,422 = 64,422/x
3. Step 3: Cross multiply
   31,482x = 64,422 × 64,422
4. Step 4: Simplify right side
   31,482x = 4,150,194,084
5. Step 5: Solve for x
   x = 4,150,194,084/31,482
6. Step 6: Final answer
   x = 131,827.52