Finding the Third Proportional to 294,714 and 443,790

Step by Step Solution

1. Step 1: Write the proportion equation
   294,714 : 443,790 = 443,790 : x
2. Step 2: Convert to fraction form
   294,714/443,790 = 443,790/x
3. Step 3: Cross multiply
   294,714x = 443,790 × 443,790
4. Step 4: Simplify right side
   294,714x = 196,949,564,100
5. Step 5: Solve for x
   x = 196,949,564,100/294,714
6. Step 6: Final answer
   x = 668,273.53