Finding the Third Proportional to 7,320 and 12,036

Step by Step Solution

1. Step 1: Write the proportion equation
   7,320 : 12,036 = 12,036 : x
2. Step 2: Convert to fraction form
   7,320/12,036 = 12,036/x
3. Step 3: Cross multiply
   7,320x = 12,036 × 12,036
4. Step 4: Simplify right side
   7,320x = 144,865,296
5. Step 5: Solve for x
   x = 144,865,296/7,320
6. Step 6: Final answer
   x = 19,790.34