Finding the Third Proportional to 17,989.50 and 38,170.50

Step by Step Solution

1. Step 1: Write the proportion equation
   17,989.50 : 38,170.50 = 38,170.50 : x
2. Step 2: Convert to fraction form
   17,989.50/38,170.50 = 38,170.50/x
3. Step 3: Cross multiply
   17,989.50x = 38,170.50 × 38,170.50
4. Step 4: Simplify right side
   17,989.50x = 1,456,987,070.25
5. Step 5: Solve for x
   x = 1,456,987,070.25/17,989.50
6. Step 6: Final answer
   x = 80,990.97