Finding the Third Proportional to 30,820 and 63,096

Step by Step Solution

1. Step 1: Write the proportion equation
   30,820 : 63,096 = 63,096 : x
2. Step 2: Convert to fraction form
   30,820/63,096 = 63,096/x
3. Step 3: Cross multiply
   30,820x = 63,096 × 63,096
4. Step 4: Simplify right side
   30,820x = 3,981,105,216
5. Step 5: Solve for x
   x = 3,981,105,216/30,820
6. Step 6: Final answer
   x = 129,172.78