Finding the Third Proportional to 40,968 and 89,640

Step by Step Solution

1. Step 1: Write the proportion equation
   40,968 : 89,640 = 89,640 : x
2. Step 2: Convert to fraction form
   40,968/89,640 = 89,640/x
3. Step 3: Cross multiply
   40,968x = 89,640 × 89,640
4. Step 4: Simplify right side
   40,968x = 8,035,329,600
5. Step 5: Solve for x
   x = 8,035,329,600/40,968
6. Step 6: Final answer
   x = 196,136.73