Finding the Third Proportional to 17,624 and 20,722

Step by Step Solution

1. Step 1: Write the proportion equation
   17,624 : 20,722 = 20,722 : x
2. Step 2: Convert to fraction form
   17,624/20,722 = 20,722/x
3. Step 3: Cross multiply
   17,624x = 20,722 × 20,722
4. Step 4: Simplify right side
   17,624x = 429,401,284
5. Step 5: Solve for x
   x = 429,401,284/17,624
6. Step 6: Final answer
   x = 24,364.58