Finding the Third Proportional to 166,046.50 and 343,908

Step by Step Solution

1. Step 1: Write the proportion equation
   166,046.50 : 343,908 = 343,908 : x
2. Step 2: Convert to fraction form
   166,046.50/343,908 = 343,908/x
3. Step 3: Cross multiply
   166,046.50x = 343,908 × 343,908
4. Step 4: Simplify right side
   166,046.50x = 118,272,712,464
5. Step 5: Solve for x
   x = 118,272,712,464/166,046.50
6. Step 6: Final answer
   x = 712,286.69