Finding the Third Proportional to 55,789.50 and 121,422

Step by Step Solution

1. Step 1: Write the proportion equation
   55,789.50 : 121,422 = 121,422 : x
2. Step 2: Convert to fraction form
   55,789.50/121,422 = 121,422/x
3. Step 3: Cross multiply
   55,789.50x = 121,422 × 121,422
4. Step 4: Simplify right side
   55,789.50x = 14,743,302,084
5. Step 5: Solve for x
   x = 14,743,302,084/55,789.50
6. Step 6: Final answer
   x = 264,266.61