Finding the Third Proportional to 171,738 and 373,992

Step by Step Solution

1. Step 1: Write the proportion equation
   171,738 : 373,992 = 373,992 : x
2. Step 2: Convert to fraction form
   171,738/373,992 = 373,992/x
3. Step 3: Cross multiply
   171,738x = 373,992 × 373,992
4. Step 4: Simplify right side
   171,738x = 139,870,016,064
5. Step 5: Solve for x
   x = 139,870,016,064/171,738
6. Step 6: Final answer
   x = 814,438.37