Finding the Third Proportional to 9,240 and 13,288

Step by Step Solution

1. Step 1: Write the proportion equation
   9,240 : 13,288 = 13,288 : x
2. Step 2: Convert to fraction form
   9,240/13,288 = 13,288/x
3. Step 3: Cross multiply
   9,240x = 13,288 × 13,288
4. Step 4: Simplify right side
   9,240x = 176,570,944
5. Step 5: Solve for x
   x = 176,570,944/9,240
6. Step 6: Final answer
   x = 19,109.41