Finding the Third Proportional to 59,578 and 124,056

Step by Step Solution

1. Step 1: Write the proportion equation
   59,578 : 124,056 = 124,056 : x
2. Step 2: Convert to fraction form
   59,578/124,056 = 124,056/x
3. Step 3: Cross multiply
   59,578x = 124,056 × 124,056
4. Step 4: Simplify right side
   59,578x = 15,389,891,136
5. Step 5: Solve for x
   x = 15,389,891,136/59,578
6. Step 6: Final answer
   x = 258,315.00