Finding the Third Proportional to 19,865.25 and 27,428.63

Step by Step Solution

1. Step 1: Write the proportion equation
   19,865.25 : 27,428.63 = 27,428.63 : x
2. Step 2: Convert to fraction form
   19,865.25/27,428.63 = 27,428.63/x
3. Step 3: Cross multiply
   19,865.25x = 27,428.63 × 27,428.63
4. Step 4: Simplify right side
   19,865.25x = 752,329,469.39
5. Step 5: Solve for x
   x = 752,329,469.39/19,865.25
6. Step 6: Final answer
   x = 37,871.63