Finding the Third Proportional to 20,238 and 41,479

Step by Step Solution

1. Step 1: Write the proportion equation
   20,238 : 41,479 = 41,479 : x
2. Step 2: Convert to fraction form
   20,238/41,479 = 41,479/x
3. Step 3: Cross multiply
   20,238x = 41,479 × 41,479
4. Step 4: Simplify right side
   20,238x = 1,720,507,441
5. Step 5: Solve for x
   x = 1,720,507,441/20,238
6. Step 6: Final answer
   x = 85,013.71