Finding the Third Proportional to 11,513 and 17,391

Step by Step Solution

1. Step 1: Write the proportion equation
   11,513 : 17,391 = 17,391 : x
2. Step 2: Convert to fraction form
   11,513/17,391 = 17,391/x
3. Step 3: Cross multiply
   11,513x = 17,391 × 17,391
4. Step 4: Simplify right side
   11,513x = 302,446,881
5. Step 5: Solve for x
   x = 302,446,881/11,513
6. Step 6: Final answer
   x = 26,270.03