Finding the Third Proportional to 84,379 and 123,238

Step by Step Solution

1. Step 1: Write the proportion equation
   84,379 : 123,238 = 123,238 : x
2. Step 2: Convert to fraction form
   84,379/123,238 = 123,238/x
3. Step 3: Cross multiply
   84,379x = 123,238 × 123,238
4. Step 4: Simplify right side
   84,379x = 15,187,604,644
5. Step 5: Solve for x
   x = 15,187,604,644/84,379
6. Step 6: Final answer
   x = 179,992.71