Finding the Third Proportional to 12,055.88 and 18,431.25

Step by Step Solution

1. Step 1: Write the proportion equation
   12,055.88 : 18,431.25 = 18,431.25 : x
2. Step 2: Convert to fraction form
   12,055.88/18,431.25 = 18,431.25/x
3. Step 3: Cross multiply
   12,055.88x = 18,431.25 × 18,431.25
4. Step 4: Simplify right side
   12,055.88x = 339,710,976.56
5. Step 5: Solve for x
   x = 339,710,976.56/12,055.88
6. Step 6: Final answer
   x = 28,178.04