Finding the Third Proportional to 10,890 and 17,253

Step by Step Solution

1. Step 1: Write the proportion equation
   10,890 : 17,253 = 17,253 : x
2. Step 2: Convert to fraction form
   10,890/17,253 = 17,253/x
3. Step 3: Cross multiply
   10,890x = 17,253 × 17,253
4. Step 4: Simplify right side
   10,890x = 297,666,009
5. Step 5: Solve for x
   x = 297,666,009/10,890
6. Step 6: Final answer
   x = 27,333.89