Finding the Third Proportional to 9,708 and 21,004

Step by Step Solution

1. Step 1: Write the proportion equation
   9,708 : 21,004 = 21,004 : x
2. Step 2: Convert to fraction form
   9,708/21,004 = 21,004/x
3. Step 3: Cross multiply
   9,708x = 21,004 × 21,004
4. Step 4: Simplify right side
   9,708x = 441,168,016
5. Step 5: Solve for x
   x = 441,168,016/9,708
6. Step 6: Final answer
   x = 45,443.76