Finding the Third Proportional to 19,668.75 and 42,617.25

Step by Step Solution

1. Step 1: Write the proportion equation
   19,668.75 : 42,617.25 = 42,617.25 : x
2. Step 2: Convert to fraction form
   19,668.75/42,617.25 = 42,617.25/x
3. Step 3: Cross multiply
   19,668.75x = 42,617.25 × 42,617.25
4. Step 4: Simplify right side
   19,668.75x = 1,816,229,997.56
5. Step 5: Solve for x
   x = 1,816,229,997.56/19,668.75
6. Step 6: Final answer
   x = 92,340.90