Finding the Third Proportional to 14,013.94 and 20,821.31

Step by Step Solution

1. Step 1: Write the proportion equation
   14,013.94 : 20,821.31 = 20,821.31 : x
2. Step 2: Convert to fraction form
   14,013.94/20,821.31 = 20,821.31/x
3. Step 3: Cross multiply
   14,013.94x = 20,821.31 × 20,821.31
4. Step 4: Simplify right side
   14,013.94x = 433,527,054.22
5. Step 5: Solve for x
   x = 433,527,054.22/14,013.94
6. Step 6: Final answer
   x = 30,935.42