Finding the Third Proportional to 161,617.50 and 354,096

Step by Step Solution

1. Step 1: Write the proportion equation
   161,617.50 : 354,096 = 354,096 : x
2. Step 2: Convert to fraction form
   161,617.50/354,096 = 354,096/x
3. Step 3: Cross multiply
   161,617.50x = 354,096 × 354,096
4. Step 4: Simplify right side
   161,617.50x = 125,383,977,216
5. Step 5: Solve for x
   x = 125,383,977,216/161,617.50
6. Step 6: Final answer
   x = 775,806.93