Finding the Third Proportional to 21,829.50 and 25,656.75

Step by Step Solution

1. Step 1: Write the proportion equation
   21,829.50 : 25,656.75 = 25,656.75 : x
2. Step 2: Convert to fraction form
   21,829.50/25,656.75 = 25,656.75/x
3. Step 3: Cross multiply
   21,829.50x = 25,656.75 × 25,656.75
4. Step 4: Simplify right side
   21,829.50x = 658,268,820.56
5. Step 5: Solve for x
   x = 658,268,820.56/21,829.50
6. Step 6: Final answer
   x = 30,155.01