Finding the Third Proportional to 120,071 and 173,906

Step by Step Solution

1. Step 1: Write the proportion equation
   120,071 : 173,906 = 173,906 : x
2. Step 2: Convert to fraction form
   120,071/173,906 = 173,906/x
3. Step 3: Cross multiply
   120,071x = 173,906 × 173,906
4. Step 4: Simplify right side
   120,071x = 30,243,296,836
5. Step 5: Solve for x
   x = 30,243,296,836/120,071
6. Step 6: Final answer
   x = 251,878.45