Finding the Third Proportional to 122,356.50 and 270,915

Step by Step Solution

1. Step 1: Write the proportion equation
   122,356.50 : 270,915 = 270,915 : x
2. Step 2: Convert to fraction form
   122,356.50/270,915 = 270,915/x
3. Step 3: Cross multiply
   122,356.50x = 270,915 × 270,915
4. Step 4: Simplify right side
   122,356.50x = 73,394,937,225
5. Step 5: Solve for x
   x = 73,394,937,225/122,356.50
6. Step 6: Final answer
   x = 599,845.02