Finding the Third Proportional to 9,910 and 17,480

Step by Step Solution

1. Step 1: Write the proportion equation
   9,910 : 17,480 = 17,480 : x
2. Step 2: Convert to fraction form
   9,910/17,480 = 17,480/x
3. Step 3: Cross multiply
   9,910x = 17,480 × 17,480
4. Step 4: Simplify right side
   9,910x = 305,550,400
5. Step 5: Solve for x
   x = 305,550,400/9,910
6. Step 6: Final answer
   x = 30,832.53