Finding the Third Proportional to 10,890 and 17,308

Step by Step Solution

1. Step 1: Write the proportion equation
   10,890 : 17,308 = 17,308 : x
2. Step 2: Convert to fraction form
   10,890/17,308 = 17,308/x
3. Step 3: Cross multiply
   10,890x = 17,308 × 17,308
4. Step 4: Simplify right side
   10,890x = 299,566,864
5. Step 5: Solve for x
   x = 299,566,864/10,890
6. Step 6: Final answer
   x = 27,508.44