Finding the Third Proportional to 9,852 and 21,089

Step by Step Solution

1. Step 1: Write the proportion equation
   9,852 : 21,089 = 21,089 : x
2. Step 2: Convert to fraction form
   9,852/21,089 = 21,089/x
3. Step 3: Cross multiply
   9,852x = 21,089 × 21,089
4. Step 4: Simplify right side
   9,852x = 444,745,921
5. Step 5: Solve for x
   x = 444,745,921/9,852
6. Step 6: Final answer
   x = 45,142.70