Finding the Third Proportional to 8,691 and 18,003

Step by Step Solution

1. Step 1: Write the proportion equation
   8,691 : 18,003 = 18,003 : x
2. Step 2: Convert to fraction form
   8,691/18,003 = 18,003/x
3. Step 3: Cross multiply
   8,691x = 18,003 × 18,003
4. Step 4: Simplify right side
   8,691x = 324,108,009
5. Step 5: Solve for x
   x = 324,108,009/8,691
6. Step 6: Final answer
   x = 37,292.37