Finding the Third Proportional to 11,172 and 17,318

Step by Step Solution

1. Step 1: Write the proportion equation
   11,172 : 17,318 = 17,318 : x
2. Step 2: Convert to fraction form
   11,172/17,318 = 17,318/x
3. Step 3: Cross multiply
   11,172x = 17,318 × 17,318
4. Step 4: Simplify right side
   11,172x = 299,913,124
5. Step 5: Solve for x
   x = 299,913,124/11,172
6. Step 6: Final answer
   x = 26,845.07