Finding the Third Proportional to 41,518 and 85,990

Step by Step Solution

1. Step 1: Write the proportion equation
   41,518 : 85,990 = 85,990 : x
2. Step 2: Convert to fraction form
   41,518/85,990 = 85,990/x
3. Step 3: Cross multiply
   41,518x = 85,990 × 85,990
4. Step 4: Simplify right side
   41,518x = 7,394,280,100
5. Step 5: Solve for x
   x = 7,394,280,100/41,518
6. Step 6: Final answer
   x = 178,098.18