Finding the Third Proportional to 166,671.50 and 359,404.50

Step by Step Solution

1. Step 1: Write the proportion equation
   166,671.50 : 359,404.50 = 359,404.50 : x
2. Step 2: Convert to fraction form
   166,671.50/359,404.50 = 359,404.50/x
3. Step 3: Cross multiply
   166,671.50x = 359,404.50 × 359,404.50
4. Step 4: Simplify right side
   166,671.50x = 129,171,594,620.25
5. Step 5: Solve for x
   x = 129,171,594,620.25/166,671.50
6. Step 6: Final answer
   x = 775,007.09