Finding the Third Proportional to 173,729 and 379,443

Step by Step Solution

1. Step 1: Write the proportion equation
   173,729 : 379,443 = 379,443 : x
2. Step 2: Convert to fraction form
   173,729/379,443 = 379,443/x
3. Step 3: Cross multiply
   173,729x = 379,443 × 379,443
4. Step 4: Simplify right side
   173,729x = 143,976,990,249
5. Step 5: Solve for x
   x = 143,976,990,249/173,729
6. Step 6: Final answer
   x = 828,744.71