Finding the Third Proportional to 13,865.25 and 21,312.75

Step by Step Solution

1. Step 1: Write the proportion equation
   13,865.25 : 21,312.75 = 21,312.75 : x
2. Step 2: Convert to fraction form
   13,865.25/21,312.75 = 21,312.75/x
3. Step 3: Cross multiply
   13,865.25x = 21,312.75 × 21,312.75
4. Step 4: Simplify right side
   13,865.25x = 454,233,312.56
5. Step 5: Solve for x
   x = 454,233,312.56/13,865.25
6. Step 6: Final answer
   x = 32,760.56