Finding the Third Proportional to 166,218 and 367,429.50

Step by Step Solution

1. Step 1: Write the proportion equation
   166,218 : 367,429.50 = 367,429.50 : x
2. Step 2: Convert to fraction form
   166,218/367,429.50 = 367,429.50/x
3. Step 3: Cross multiply
   166,218x = 367,429.50 × 367,429.50
4. Step 4: Simplify right side
   166,218x = 135,004,437,470.25
5. Step 5: Solve for x
   x = 135,004,437,470.25/166,218
6. Step 6: Final answer
   x = 812,213.10