Finding the Third Proportional to 12,210.75 and 18,361.69

Step by Step Solution

1. Step 1: Write the proportion equation
   12,210.75 : 18,361.69 = 18,361.69 : x
2. Step 2: Convert to fraction form
   12,210.75/18,361.69 = 18,361.69/x
3. Step 3: Cross multiply
   12,210.75x = 18,361.69 × 18,361.69
4. Step 4: Simplify right side
   12,210.75x = 337,151,567.85
5. Step 5: Solve for x
   x = 337,151,567.85/12,210.75
6. Step 6: Final answer
   x = 27,611.05