Finding the Third Proportional to 15,833.25 and 21,315.38

Step by Step Solution

1. Step 1: Write the proportion equation
   15,833.25 : 21,315.38 = 21,315.38 : x
2. Step 2: Convert to fraction form
   15,833.25/21,315.38 = 21,315.38/x
3. Step 3: Cross multiply
   15,833.25x = 21,315.38 × 21,315.38
4. Step 4: Simplify right side
   15,833.25x = 454,345,211.39
5. Step 5: Solve for x
   x = 454,345,211.39/15,833.25
6. Step 6: Final answer
   x = 28,695.64