Finding the Third Proportional to 124,499 and 270,109

Step by Step Solution

1. Step 1: Write the proportion equation
   124,499 : 270,109 = 270,109 : x
2. Step 2: Convert to fraction form
   124,499/270,109 = 270,109/x
3. Step 3: Cross multiply
   124,499x = 270,109 × 270,109
4. Step 4: Simplify right side
   124,499x = 72,958,871,881
5. Step 5: Solve for x
   x = 72,958,871,881/124,499
6. Step 6: Final answer
   x = 586,019.74