Finding the Third Proportional to 12,019 and 18,485

Step by Step Solution

1. Step 1: Write the proportion equation
   12,019 : 18,485 = 18,485 : x
2. Step 2: Convert to fraction form
   12,019/18,485 = 18,485/x
3. Step 3: Cross multiply
   12,019x = 18,485 × 18,485
4. Step 4: Simplify right side
   12,019x = 341,695,225
5. Step 5: Solve for x
   x = 341,695,225/12,019
6. Step 6: Final answer
   x = 28,429.59