Finding the Third Proportional to 161,662.50 and 355,104

Step by Step Solution

1. Step 1: Write the proportion equation
   161,662.50 : 355,104 = 355,104 : x
2. Step 2: Convert to fraction form
   161,662.50/355,104 = 355,104/x
3. Step 3: Cross multiply
   161,662.50x = 355,104 × 355,104
4. Step 4: Simplify right side
   161,662.50x = 126,098,850,816
5. Step 5: Solve for x
   x = 126,098,850,816/161,662.50
6. Step 6: Final answer
   x = 780,013.00