Finding the Third Proportional to 79,860 and 173,898

Step by Step Solution

1. Step 1: Write the proportion equation
   79,860 : 173,898 = 173,898 : x
2. Step 2: Convert to fraction form
   79,860/173,898 = 173,898/x
3. Step 3: Cross multiply
   79,860x = 173,898 × 173,898
4. Step 4: Simplify right side
   79,860x = 30,240,514,404
5. Step 5: Solve for x
   x = 30,240,514,404/79,860
6. Step 6: Final answer
   x = 378,669.10