Finding the Third Proportional to 294,885 and 447,799.50

Step by Step Solution

1. Step 1: Write the proportion equation
   294,885 : 447,799.50 = 447,799.50 : x
2. Step 2: Convert to fraction form
   294,885/447,799.50 = 447,799.50/x
3. Step 3: Cross multiply
   294,885x = 447,799.50 × 447,799.50
4. Step 4: Simplify right side
   294,885x = 200,524,392,200.25
5. Step 5: Solve for x
   x = 200,524,392,200.25/294,885
6. Step 6: Final answer
   x = 680,008.79