Finding the Third Proportional to 14,979.75 and 21,578.25

Step by Step Solution

1. Step 1: Write the proportion equation
   14,979.75 : 21,578.25 = 21,578.25 : x
2. Step 2: Convert to fraction form
   14,979.75/21,578.25 = 21,578.25/x
3. Step 3: Cross multiply
   14,979.75x = 21,578.25 × 21,578.25
4. Step 4: Simplify right side
   14,979.75x = 465,620,873.06
5. Step 5: Solve for x
   x = 465,620,873.06/14,979.75
6. Step 6: Final answer
   x = 31,083.35