Finding the Third Proportional to 10,504 and 21,488

Step by Step Solution

1. Step 1: Write the proportion equation
   10,504 : 21,488 = 21,488 : x
2. Step 2: Convert to fraction form
   10,504/21,488 = 21,488/x
3. Step 3: Cross multiply
   10,504x = 21,488 × 21,488
4. Step 4: Simplify right side
   10,504x = 461,734,144
5. Step 5: Solve for x
   x = 461,734,144/10,504
6. Step 6: Final answer
   x = 43,957.93