Finding the Third Proportional to 16,387 and 38,521

Step by Step Solution

1. Step 1: Write the proportion equation
   16,387 : 38,521 = 38,521 : x
2. Step 2: Convert to fraction form
   16,387/38,521 = 38,521/x
3. Step 3: Cross multiply
   16,387x = 38,521 × 38,521
4. Step 4: Simplify right side
   16,387x = 1,483,867,441
5. Step 5: Solve for x
   x = 1,483,867,441/16,387
6. Step 6: Final answer
   x = 90,551.50