Finding the Third Proportional to 9,936 and 21,581

Step by Step Solution

1. Step 1: Write the proportion equation
   9,936 : 21,581 = 21,581 : x
2. Step 2: Convert to fraction form
   9,936/21,581 = 21,581/x
3. Step 3: Cross multiply
   9,936x = 21,581 × 21,581
4. Step 4: Simplify right side
   9,936x = 465,739,561
5. Step 5: Solve for x
   x = 465,739,561/9,936
6. Step 6: Final answer
   x = 46,873.95