Finding the Third Proportional to 8,156.50 and 17,999

Step by Step Solution

1. Step 1: Write the proportion equation
   8,156.50 : 17,999 = 17,999 : x
2. Step 2: Convert to fraction form
   8,156.50/17,999 = 17,999/x
3. Step 3: Cross multiply
   8,156.50x = 17,999 × 17,999
4. Step 4: Simplify right side
   8,156.50x = 323,964,001
5. Step 5: Solve for x
   x = 323,964,001/8,156.50
6. Step 6: Final answer
   x = 39,718.51