Finding the Third Proportional to 84,609 and 123,997

Step by Step Solution

1. Step 1: Write the proportion equation
   84,609 : 123,997 = 123,997 : x
2. Step 2: Convert to fraction form
   84,609/123,997 = 123,997/x
3. Step 3: Cross multiply
   84,609x = 123,997 × 123,997
4. Step 4: Simplify right side
   84,609x = 15,375,256,009
5. Step 5: Solve for x
   x = 15,375,256,009/84,609
6. Step 6: Final answer
   x = 181,721.28