Finding the Third Proportional to 20,678 and 30,936

Step by Step Solution

1. Step 1: Write the proportion equation
   20,678 : 30,936 = 30,936 : x
2. Step 2: Convert to fraction form
   20,678/30,936 = 30,936/x
3. Step 3: Cross multiply
   20,678x = 30,936 × 30,936
4. Step 4: Simplify right side
   20,678x = 957,036,096
5. Step 5: Solve for x
   x = 957,036,096/20,678
6. Step 6: Final answer
   x = 46,282.82