Finding the Third Proportional to 12,043.69 and 18,435.09

Step by Step Solution

1. Step 1: Write the proportion equation
   12,043.69 : 18,435.09 = 18,435.09 : x
2. Step 2: Convert to fraction form
   12,043.69/18,435.09 = 18,435.09/x
3. Step 3: Cross multiply
   12,043.69x = 18,435.09 × 18,435.09
4. Step 4: Simplify right side
   12,043.69x = 339,852,681.57
5. Step 5: Solve for x
   x = 339,852,681.57/12,043.69
6. Step 6: Final answer
   x = 28,218.32