Finding the Third Proportional to 166,306.50 and 364,821

Step by Step Solution

1. Step 1: Write the proportion equation
   166,306.50 : 364,821 = 364,821 : x
2. Step 2: Convert to fraction form
   166,306.50/364,821 = 364,821/x
3. Step 3: Cross multiply
   166,306.50x = 364,821 × 364,821
4. Step 4: Simplify right side
   166,306.50x = 133,094,362,041
5. Step 5: Solve for x
   x = 133,094,362,041/166,306.50
6. Step 6: Final answer
   x = 800,295.61