Finding the Third Proportional to 55,456.50 and 122,757

Step by Step Solution

1. Step 1: Write the proportion equation
   55,456.50 : 122,757 = 122,757 : x
2. Step 2: Convert to fraction form
   55,456.50/122,757 = 122,757/x
3. Step 3: Cross multiply
   55,456.50x = 122,757 × 122,757
4. Step 4: Simplify right side
   55,456.50x = 15,069,281,049
5. Step 5: Solve for x
   x = 15,069,281,049/55,456.50
6. Step 6: Final answer
   x = 271,731.56