Finding the Third Proportional to 12,265.25 and 19,431.38

Step by Step Solution

1. Step 1: Write the proportion equation
   12,265.25 : 19,431.38 = 19,431.38 : x
2. Step 2: Convert to fraction form
   12,265.25/19,431.38 = 19,431.38/x
3. Step 3: Cross multiply
   12,265.25x = 19,431.38 × 19,431.38
4. Step 4: Simplify right side
   12,265.25x = 377,578,334.39
5. Step 5: Solve for x
   x = 377,578,334.39/12,265.25
6. Step 6: Final answer
   x = 30,784.40