Finding the Third Proportional to 121,408.50 and 247,632

Step by Step Solution

1. Step 1: Write the proportion equation
   121,408.50 : 247,632 = 247,632 : x
2. Step 2: Convert to fraction form
   121,408.50/247,632 = 247,632/x
3. Step 3: Cross multiply
   121,408.50x = 247,632 × 247,632
4. Step 4: Simplify right side
   121,408.50x = 61,321,607,424
5. Step 5: Solve for x
   x = 61,321,607,424/121,408.50
6. Step 6: Final answer
   x = 505,084.96