Finding the Third Proportional to 8,624 and 16,240

Step by Step Solution

1. Step 1: Write the proportion equation
   8,624 : 16,240 = 16,240 : x
2. Step 2: Convert to fraction form
   8,624/16,240 = 16,240/x
3. Step 3: Cross multiply
   8,624x = 16,240 × 16,240
4. Step 4: Simplify right side
   8,624x = 263,737,600
5. Step 5: Solve for x
   x = 263,737,600/8,624
6. Step 6: Final answer
   x = 30,581.82