Finding the Third Proportional to 8,910 and 18,118.69

Step by Step Solution

1. Step 1: Write the proportion equation
   8,910 : 18,118.69 = 18,118.69 : x
2. Step 2: Convert to fraction form
   8,910/18,118.69 = 18,118.69/x
3. Step 3: Cross multiply
   8,910x = 18,118.69 × 18,118.69
4. Step 4: Simplify right side
   8,910x = 328,286,836.72
5. Step 5: Solve for x
   x = 328,286,836.72/8,910
6. Step 6: Final answer
   x = 36,844.76