Finding the Third Proportional to 8,113.50 and 17,989.88

Step by Step Solution

1. Step 1: Write the proportion equation
   8,113.50 : 17,989.88 = 17,989.88 : x
2. Step 2: Convert to fraction form
   8,113.50/17,989.88 = 17,989.88/x
3. Step 3: Cross multiply
   8,113.50x = 17,989.88 × 17,989.88
4. Step 4: Simplify right side
   8,113.50x = 323,635,602.52
5. Step 5: Solve for x
   x = 323,635,602.52/8,113.50
6. Step 6: Final answer
   x = 39,888.53