Finding the Third Proportional to 131,880 and 204,078

Step by Step Solution

1. Step 1: Write the proportion equation
   131,880 : 204,078 = 204,078 : x
2. Step 2: Convert to fraction form
   131,880/204,078 = 204,078/x
3. Step 3: Cross multiply
   131,880x = 204,078 × 204,078
4. Step 4: Simplify right side
   131,880x = 41,647,830,084
5. Step 5: Solve for x
   x = 41,647,830,084/131,880
6. Step 6: Final answer
   x = 315,800.96