Finding the Third Proportional to 33,148.50 and 69,078

Step by Step Solution

1. Step 1: Write the proportion equation
   33,148.50 : 69,078 = 69,078 : x
2. Step 2: Convert to fraction form
   33,148.50/69,078 = 69,078/x
3. Step 3: Cross multiply
   33,148.50x = 69,078 × 69,078
4. Step 4: Simplify right side
   33,148.50x = 4,771,770,084
5. Step 5: Solve for x
   x = 4,771,770,084/33,148.50
6. Step 6: Final answer
   x = 143,951.31