Finding the Third Proportional to 20,383 and 30,790

Step by Step Solution

1. Step 1: Write the proportion equation
   20,383 : 30,790 = 30,790 : x
2. Step 2: Convert to fraction form
   20,383/30,790 = 30,790/x
3. Step 3: Cross multiply
   20,383x = 30,790 × 30,790
4. Step 4: Simplify right side
   20,383x = 948,024,100
5. Step 5: Solve for x
   x = 948,024,100/20,383
6. Step 6: Final answer
   x = 46,510.53