Finding the Third Proportional to 9,954 and 20,538

Step by Step Solution

1. Step 1: Write the proportion equation
   9,954 : 20,538 = 20,538 : x
2. Step 2: Convert to fraction form
   9,954/20,538 = 20,538/x
3. Step 3: Cross multiply
   9,954x = 20,538 × 20,538
4. Step 4: Simplify right side
   9,954x = 421,809,444
5. Step 5: Solve for x
   x = 421,809,444/9,954
6. Step 6: Final answer
   x = 42,375.87