Finding the Third Proportional to 279,772 and 443,682

Step by Step Solution

1. Step 1: Write the proportion equation
   279,772 : 443,682 = 443,682 : x
2. Step 2: Convert to fraction form
   279,772/443,682 = 443,682/x
3. Step 3: Cross multiply
   279,772x = 443,682 × 443,682
4. Step 4: Simplify right side
   279,772x = 196,853,717,124
5. Step 5: Solve for x
   x = 196,853,717,124/279,772
6. Step 6: Final answer
   x = 703,621.94