Finding the Third Proportional to 161,608.50 and 354,078

Step by Step Solution

1. Step 1: Write the proportion equation
   161,608.50 : 354,078 = 354,078 : x
2. Step 2: Convert to fraction form
   161,608.50/354,078 = 354,078/x
3. Step 3: Cross multiply
   161,608.50x = 354,078 × 354,078
4. Step 4: Simplify right side
   161,608.50x = 125,371,230,084
5. Step 5: Solve for x
   x = 125,371,230,084/161,608.50
6. Step 6: Final answer
   x = 775,771.26