Finding the Third Proportional to 56,319 and 123,481

Step by Step Solution

1. Step 1: Write the proportion equation
   56,319 : 123,481 = 123,481 : x
2. Step 2: Convert to fraction form
   56,319/123,481 = 123,481/x
3. Step 3: Cross multiply
   56,319x = 123,481 × 123,481
4. Step 4: Simplify right side
   56,319x = 15,247,557,361
5. Step 5: Solve for x
   x = 15,247,557,361/56,319
6. Step 6: Final answer
   x = 270,735.58