Finding the Third Proportional to 121,396.50 and 247,608

Step by Step Solution

1. Step 1: Write the proportion equation
   121,396.50 : 247,608 = 247,608 : x
2. Step 2: Convert to fraction form
   121,396.50/247,608 = 247,608/x
3. Step 3: Cross multiply
   121,396.50x = 247,608 × 247,608
4. Step 4: Simplify right side
   121,396.50x = 61,309,721,664
5. Step 5: Solve for x
   x = 61,309,721,664/121,396.50
6. Step 6: Final answer
   x = 505,036.98