Finding the Third Proportional to 8,472 and 19,499

Step by Step Solution

1. Step 1: Write the proportion equation
   8,472 : 19,499 = 19,499 : x
2. Step 2: Convert to fraction form
   8,472/19,499 = 19,499/x
3. Step 3: Cross multiply
   8,472x = 19,499 × 19,499
4. Step 4: Simplify right side
   8,472x = 380,211,001
5. Step 5: Solve for x
   x = 380,211,001/8,472
6. Step 6: Final answer
   x = 44,878.54