Finding the Third Proportional to 17,916 and 20,508

Step by Step Solution

1. Step 1: Write the proportion equation
   17,916 : 20,508 = 20,508 : x
2. Step 2: Convert to fraction form
   17,916/20,508 = 20,508/x
3. Step 3: Cross multiply
   17,916x = 20,508 × 20,508
4. Step 4: Simplify right side
   17,916x = 420,578,064
5. Step 5: Solve for x
   x = 420,578,064/17,916
6. Step 6: Final answer
   x = 23,475.00