Finding the Third Proportional to 41,190 and 90,400.50

Step by Step Solution

1. Step 1: Write the proportion equation
   41,190 : 90,400.50 = 90,400.50 : x
2. Step 2: Convert to fraction form
   41,190/90,400.50 = 90,400.50/x
3. Step 3: Cross multiply
   41,190x = 90,400.50 × 90,400.50
4. Step 4: Simplify right side
   41,190x = 8,172,250,400.25
5. Step 5: Solve for x
   x = 8,172,250,400.25/41,190
6. Step 6: Final answer
   x = 198,403.75