Finding the Third Proportional to 12,428.44 and 18,055.69

Step by Step Solution

1. Step 1: Write the proportion equation
   12,428.44 : 18,055.69 = 18,055.69 : x
2. Step 2: Convert to fraction form
   12,428.44/18,055.69 = 18,055.69/x
3. Step 3: Cross multiply
   12,428.44x = 18,055.69 × 18,055.69
4. Step 4: Simplify right side
   12,428.44x = 326,007,851.10
5. Step 5: Solve for x
   x = 326,007,851.10/12,428.44
6. Step 6: Final answer
   x = 26,230.80