Finding the Third Proportional to 12,268.88 and 19,458.38

Step by Step Solution

1. Step 1: Write the proportion equation
   12,268.88 : 19,458.38 = 19,458.38 : x
2. Step 2: Convert to fraction form
   12,268.88/19,458.38 = 19,458.38/x
3. Step 3: Cross multiply
   12,268.88x = 19,458.38 × 19,458.38
4. Step 4: Simplify right side
   12,268.88x = 378,628,357.64
5. Step 5: Solve for x
   x = 378,628,357.64/12,268.88
6. Step 6: Final answer
   x = 30,860.89