Finding the Third Proportional to 19,190.25 and 40,658.63

Step by Step Solution

1. Step 1: Write the proportion equation
   19,190.25 : 40,658.63 = 40,658.63 : x
2. Step 2: Convert to fraction form
   19,190.25/40,658.63 = 40,658.63/x
3. Step 3: Cross multiply
   19,190.25x = 40,658.63 × 40,658.63
4. Step 4: Simplify right side
   19,190.25x = 1,653,123,786.89
5. Step 5: Solve for x
   x = 1,653,123,786.89/19,190.25
6. Step 6: Final answer
   x = 86,143.94