Finding the Third Proportional to 8,304 and 12,913

Step by Step Solution

1. Step 1: Write the proportion equation
   8,304 : 12,913 = 12,913 : x
2. Step 2: Convert to fraction form
   8,304/12,913 = 12,913/x
3. Step 3: Cross multiply
   8,304x = 12,913 × 12,913
4. Step 4: Simplify right side
   8,304x = 166,745,569
5. Step 5: Solve for x
   x = 166,745,569/8,304
6. Step 6: Final answer
   x = 20,080.15