Finding the Third Proportional to 9,561 and 20,886

Step by Step Solution

1. Step 1: Write the proportion equation
   9,561 : 20,886 = 20,886 : x
2. Step 2: Convert to fraction form
   9,561/20,886 = 20,886/x
3. Step 3: Cross multiply
   9,561x = 20,886 × 20,886
4. Step 4: Simplify right side
   9,561x = 436,224,996
5. Step 5: Solve for x
   x = 436,224,996/9,561
6. Step 6: Final answer
   x = 45,625.46