Finding the Third Proportional to 294,921 and 443,839.50

Step by Step Solution

1. Step 1: Write the proportion equation
   294,921 : 443,839.50 = 443,839.50 : x
2. Step 2: Convert to fraction form
   294,921/443,839.50 = 443,839.50/x
3. Step 3: Cross multiply
   294,921x = 443,839.50 × 443,839.50
4. Step 4: Simplify right side
   294,921x = 196,993,501,760.25
5. Step 5: Solve for x
   x = 196,993,501,760.25/294,921
6. Step 6: Final answer
   x = 667,953.46