Finding the Third Proportional to 19,617.75 and 41,928.75

Step by Step Solution

1. Step 1: Write the proportion equation
   19,617.75 : 41,928.75 = 41,928.75 : x
2. Step 2: Convert to fraction form
   19,617.75/41,928.75 = 41,928.75/x
3. Step 3: Cross multiply
   19,617.75x = 41,928.75 × 41,928.75
4. Step 4: Simplify right side
   19,617.75x = 1,758,020,076.56
5. Step 5: Solve for x
   x = 1,758,020,076.56/19,617.75
6. Step 6: Final answer
   x = 89,613.75