Finding the Third Proportional to 319,149 and 476,464.50

Step by Step Solution

1. Step 1: Write the proportion equation
   319,149 : 476,464.50 = 476,464.50 : x
2. Step 2: Convert to fraction form
   319,149/476,464.50 = 476,464.50/x
3. Step 3: Cross multiply
   319,149x = 476,464.50 × 476,464.50
4. Step 4: Simplify right side
   319,149x = 227,018,419,760.25
5. Step 5: Solve for x
   x = 227,018,419,760.25/319,149
6. Step 6: Final answer
   x = 711,324.24