Finding the Third Proportional to 40,620 and 89,087

Step by Step Solution

1. Step 1: Write the proportion equation
   40,620 : 89,087 = 89,087 : x
2. Step 2: Convert to fraction form
   40,620/89,087 = 89,087/x
3. Step 3: Cross multiply
   40,620x = 89,087 × 89,087
4. Step 4: Simplify right side
   40,620x = 7,936,493,569
5. Step 5: Solve for x
   x = 7,936,493,569/40,620
6. Step 6: Final answer
   x = 195,383.89