Finding the Third Proportional to 294,706 and 443,778

Step by Step Solution

1. Step 1: Write the proportion equation
   294,706 : 443,778 = 443,778 : x
2. Step 2: Convert to fraction form
   294,706/443,778 = 443,778/x
3. Step 3: Cross multiply
   294,706x = 443,778 × 443,778
4. Step 4: Simplify right side
   294,706x = 196,938,913,284
5. Step 5: Solve for x
   x = 196,938,913,284/294,706
6. Step 6: Final answer
   x = 668,255.53