Finding the Third Proportional to 40,998 and 89,211

Step by Step Solution

1. Step 1: Write the proportion equation
   40,998 : 89,211 = 89,211 : x
2. Step 2: Convert to fraction form
   40,998/89,211 = 89,211/x
3. Step 3: Cross multiply
   40,998x = 89,211 × 89,211
4. Step 4: Simplify right side
   40,998x = 7,958,602,521
5. Step 5: Solve for x
   x = 7,958,602,521/40,998
6. Step 6: Final answer
   x = 194,121.73