Finding the Third Proportional to 40,912 and 89,631

Step by Step Solution

1. Step 1: Write the proportion equation
   40,912 : 89,631 = 89,631 : x
2. Step 2: Convert to fraction form
   40,912/89,631 = 89,631/x
3. Step 3: Cross multiply
   40,912x = 89,631 × 89,631
4. Step 4: Simplify right side
   40,912x = 8,033,716,161
5. Step 5: Solve for x
   x = 8,033,716,161/40,912
6. Step 6: Final answer
   x = 196,365.76