Finding the Third Proportional to 21,063.38 and 31,728.38

Step by Step Solution

1. Step 1: Write the proportion equation
   21,063.38 : 31,728.38 = 31,728.38 : x
2. Step 2: Convert to fraction form
   21,063.38/31,728.38 = 31,728.38/x
3. Step 3: Cross multiply
   21,063.38x = 31,728.38 × 31,728.38
4. Step 4: Simplify right side
   21,063.38x = 1,006,689,780.14
5. Step 5: Solve for x
   x = 1,006,689,780.14/21,063.38
6. Step 6: Final answer
   x = 47,793.38