Finding the Third Proportional to 10,912 and 17,288

Step by Step Solution

1. Step 1: Write the proportion equation
   10,912 : 17,288 = 17,288 : x
2. Step 2: Convert to fraction form
   10,912/17,288 = 17,288/x
3. Step 3: Cross multiply
   10,912x = 17,288 × 17,288
4. Step 4: Simplify right side
   10,912x = 298,874,944
5. Step 5: Solve for x
   x = 298,874,944/10,912
6. Step 6: Final answer
   x = 27,389.57