Finding the Third Proportional to 17,020 and 20,210.50

Step by Step Solution

1. Step 1: Write the proportion equation
   17,020 : 20,210.50 = 20,210.50 : x
2. Step 2: Convert to fraction form
   17,020/20,210.50 = 20,210.50/x
3. Step 3: Cross multiply
   17,020x = 20,210.50 × 20,210.50
4. Step 4: Simplify right side
   17,020x = 408,464,310.25
5. Step 5: Solve for x
   x = 408,464,310.25/17,020
6. Step 6: Final answer
   x = 23,999.08