Finding the Third Proportional to 8,978 and 19,108

Step by Step Solution

1. Step 1: Write the proportion equation
   8,978 : 19,108 = 19,108 : x
2. Step 2: Convert to fraction form
   8,978/19,108 = 19,108/x
3. Step 3: Cross multiply
   8,978x = 19,108 × 19,108
4. Step 4: Simplify right side
   8,978x = 365,115,664
5. Step 5: Solve for x
   x = 365,115,664/8,978
6. Step 6: Final answer
   x = 40,667.82