Finding the Third Proportional to 21,391.50 and 23,305.50

Step by Step Solution

1. Step 1: Write the proportion equation
   21,391.50 : 23,305.50 = 23,305.50 : x
2. Step 2: Convert to fraction form
   21,391.50/23,305.50 = 23,305.50/x
3. Step 3: Cross multiply
   21,391.50x = 23,305.50 × 23,305.50
4. Step 4: Simplify right side
   21,391.50x = 543,146,330.25
5. Step 5: Solve for x
   x = 543,146,330.25/21,391.50
6. Step 6: Final answer
   x = 25,390.75