Finding the Third Proportional to 40,930 and 89,660

Step by Step Solution

1. Step 1: Write the proportion equation
   40,930 : 89,660 = 89,660 : x
2. Step 2: Convert to fraction form
   40,930/89,660 = 89,660/x
3. Step 3: Cross multiply
   40,930x = 89,660 × 89,660
4. Step 4: Simplify right side
   40,930x = 8,038,915,600
5. Step 5: Solve for x
   x = 8,038,915,600/40,930
6. Step 6: Final answer
   x = 196,406.44