Finding the Third Proportional to 8,172 and 17,118

Step by Step Solution

1. Step 1: Write the proportion equation
   8,172 : 17,118 = 17,118 : x
2. Step 2: Convert to fraction form
   8,172/17,118 = 17,118/x
3. Step 3: Cross multiply
   8,172x = 17,118 × 17,118
4. Step 4: Simplify right side
   8,172x = 293,025,924
5. Step 5: Solve for x
   x = 293,025,924/8,172
6. Step 6: Final answer
   x = 35,857.31