Finding the Third Proportional to 296,442 and 443,855.25

Step by Step Solution

1. Step 1: Write the proportion equation
   296,442 : 443,855.25 = 443,855.25 : x
2. Step 2: Convert to fraction form
   296,442/443,855.25 = 443,855.25/x
3. Step 3: Cross multiply
   296,442x = 443,855.25 × 443,855.25
4. Step 4: Simplify right side
   296,442x = 197,007,482,952.56
5. Step 5: Solve for x
   x = 197,007,482,952.56/296,442
6. Step 6: Final answer
   x = 664,573.45