Finding the Third Proportional to 166,099.50 and 354,345

Step by Step Solution

1. Step 1: Write the proportion equation
   166,099.50 : 354,345 = 354,345 : x
2. Step 2: Convert to fraction form
   166,099.50/354,345 = 354,345/x
3. Step 3: Cross multiply
   166,099.50x = 354,345 × 354,345
4. Step 4: Simplify right side
   166,099.50x = 125,560,379,025
5. Step 5: Solve for x
   x = 125,560,379,025/166,099.50
6. Step 6: Final answer
   x = 755,934.72