Finding the Third Proportional to 19,980.75 and 41,874.75

Step by Step Solution

1. Step 1: Write the proportion equation
   19,980.75 : 41,874.75 = 41,874.75 : x
2. Step 2: Convert to fraction form
   19,980.75/41,874.75 = 41,874.75/x
3. Step 3: Cross multiply
   19,980.75x = 41,874.75 × 41,874.75
4. Step 4: Simplify right side
   19,980.75x = 1,753,494,687.56
5. Step 5: Solve for x
   x = 1,753,494,687.56/19,980.75
6. Step 6: Final answer
   x = 87,759.20