Finding the Third Proportional to 21,717 and 23,935.50

Step by Step Solution

1. Step 1: Write the proportion equation
   21,717 : 23,935.50 = 23,935.50 : x
2. Step 2: Convert to fraction form
   21,717/23,935.50 = 23,935.50/x
3. Step 3: Cross multiply
   21,717x = 23,935.50 × 23,935.50
4. Step 4: Simplify right side
   21,717x = 572,908,160.25
5. Step 5: Solve for x
   x = 572,908,160.25/21,717
6. Step 6: Final answer
   x = 26,380.63