Finding the Third Proportional to 16,398 and 38,538

Step by Step Solution

1. Step 1: Write the proportion equation
   16,398 : 38,538 = 38,538 : x
2. Step 2: Convert to fraction form
   16,398/38,538 = 38,538/x
3. Step 3: Cross multiply
   16,398x = 38,538 × 38,538
4. Step 4: Simplify right side
   16,398x = 1,485,177,444
5. Step 5: Solve for x
   x = 1,485,177,444/16,398
6. Step 6: Final answer
   x = 90,570.65