Finding the Third Proportional to 59,508 and 123,390

Step by Step Solution

1. Step 1: Write the proportion equation
   59,508 : 123,390 = 123,390 : x
2. Step 2: Convert to fraction form
   59,508/123,390 = 123,390/x
3. Step 3: Cross multiply
   59,508x = 123,390 × 123,390
4. Step 4: Simplify right side
   59,508x = 15,225,092,100
5. Step 5: Solve for x
   x = 15,225,092,100/59,508
6. Step 6: Final answer
   x = 255,849.50