Finding the Third Proportional to 20,439 and 30,838

Step by Step Solution

1. Step 1: Write the proportion equation
   20,439 : 30,838 = 30,838 : x
2. Step 2: Convert to fraction form
   20,439/30,838 = 30,838/x
3. Step 3: Cross multiply
   20,439x = 30,838 × 30,838
4. Step 4: Simplify right side
   20,439x = 950,982,244
5. Step 5: Solve for x
   x = 950,982,244/20,439
6. Step 6: Final answer
   x = 46,527.83