Finding the Third Proportional to 279,841 and 443,831

Step by Step Solution

1. Step 1: Write the proportion equation
   279,841 : 443,831 = 443,831 : x
2. Step 2: Convert to fraction form
   279,841/443,831 = 443,831/x
3. Step 3: Cross multiply
   279,841x = 443,831 × 443,831
4. Step 4: Simplify right side
   279,841x = 196,985,956,561
5. Step 5: Solve for x
   x = 196,985,956,561/279,841
6. Step 6: Final answer
   x = 703,921