Finding the Third Proportional to 19,845 and 41,107.50

Step by Step Solution

1. Step 1: Write the proportion equation
   19,845 : 41,107.50 = 41,107.50 : x
2. Step 2: Convert to fraction form
   19,845/41,107.50 = 41,107.50/x
3. Step 3: Cross multiply
   19,845x = 41,107.50 × 41,107.50
4. Step 4: Simplify right side
   19,845x = 1,689,826,556.25
5. Step 5: Solve for x
   x = 1,689,826,556.25/19,845
6. Step 6: Final answer
   x = 85,151.25