Finding the Third Proportional to 268,717.50 and 406,100.25

Step by Step Solution

1. Step 1: Write the proportion equation
   268,717.50 : 406,100.25 = 406,100.25 : x
2. Step 2: Convert to fraction form
   268,717.50/406,100.25 = 406,100.25/x
3. Step 3: Cross multiply
   268,717.50x = 406,100.25 × 406,100.25
4. Step 4: Simplify right side
   268,717.50x = 164,917,413,050.06
5. Step 5: Solve for x
   x = 164,917,413,050.06/268,717.50
6. Step 6: Final answer
   x = 613,720.41