Finding the Third Proportional to 118,243 and 173,907

Step by Step Solution

1. Step 1: Write the proportion equation
   118,243 : 173,907 = 173,907 : x
2. Step 2: Convert to fraction form
   118,243/173,907 = 173,907/x
3. Step 3: Cross multiply
   118,243x = 173,907 × 173,907
4. Step 4: Simplify right side
   118,243x = 30,243,644,649
5. Step 5: Solve for x
   x = 30,243,644,649/118,243
6. Step 6: Final answer
   x = 255,775.35