Finding the Third Proportional to 121,422.75 and 247,662

Step by Step Solution

1. Step 1: Write the proportion equation
   121,422.75 : 247,662 = 247,662 : x
2. Step 2: Convert to fraction form
   121,422.75/247,662 = 247,662/x
3. Step 3: Cross multiply
   121,422.75x = 247,662 × 247,662
4. Step 4: Simplify right side
   121,422.75x = 61,336,466,244
5. Step 5: Solve for x
   x = 61,336,466,244/121,422.75
6. Step 6: Final answer
   x = 505,148.06