Finding the Third Proportional to 17,998 and 38,648

Step by Step Solution

1. Step 1: Write the proportion equation
   17,998 : 38,648 = 38,648 : x
2. Step 2: Convert to fraction form
   17,998/38,648 = 38,648/x
3. Step 3: Cross multiply
   17,998x = 38,648 × 38,648
4. Step 4: Simplify right side
   17,998x = 1,493,667,904
5. Step 5: Solve for x
   x = 1,493,667,904/17,998
6. Step 6: Final answer
   x = 82,990.77