Finding the Third Proportional to 14,665.13 and 21,015.38

Step by Step Solution

1. Step 1: Write the proportion equation
   14,665.13 : 21,015.38 = 21,015.38 : x
2. Step 2: Convert to fraction form
   14,665.13/21,015.38 = 21,015.38/x
3. Step 3: Cross multiply
   14,665.13x = 21,015.38 × 21,015.38
4. Step 4: Simplify right side
   14,665.13x = 441,645,986.39
5. Step 5: Solve for x
   x = 441,645,986.39/14,665.13
6. Step 6: Final answer
   x = 30,115.39