Finding the Third Proportional to 60,578 and 123,628

Step by Step Solution

1. Step 1: Write the proportion equation
   60,578 : 123,628 = 123,628 : x
2. Step 2: Convert to fraction form
   60,578/123,628 = 123,628/x
3. Step 3: Cross multiply
   60,578x = 123,628 × 123,628
4. Step 4: Simplify right side
   60,578x = 15,283,882,384
5. Step 5: Solve for x
   x = 15,283,882,384/60,578
6. Step 6: Final answer
   x = 252,300.87