Finding the Third Proportional to 166,158 and 243,684.50

Step by Step Solution

1. Step 1: Write the proportion equation
   166,158 : 243,684.50 = 243,684.50 : x
2. Step 2: Convert to fraction form
   166,158/243,684.50 = 243,684.50/x
3. Step 3: Cross multiply
   166,158x = 243,684.50 × 243,684.50
4. Step 4: Simplify right side
   166,158x = 59,382,135,540.25
5. Step 5: Solve for x
   x = 59,382,135,540.25/166,158
6. Step 6: Final answer
   x = 357,383.55