Finding the Third Proportional to 38,611.69 and 57,578.34

Step by Step Solution

1. Step 1: Write the proportion equation
   38,611.69 : 57,578.34 = 57,578.34 : x
2. Step 2: Convert to fraction form
   38,611.69/57,578.34 = 57,578.34/x
3. Step 3: Cross multiply
   38,611.69x = 57,578.34 × 57,578.34
4. Step 4: Simplify right side
   38,611.69x = 3,315,265,668.99
5. Step 5: Solve for x
   x = 3,315,265,668.99/38,611.69
6. Step 6: Final answer
   x = 85,861.71