Finding the Third Proportional to 38,578.50 and 57,868.50

Step by Step Solution

1. Step 1: Write the proportion equation
   38,578.50 : 57,868.50 = 57,868.50 : x
2. Step 2: Convert to fraction form
   38,578.50/57,868.50 = 57,868.50/x
3. Step 3: Cross multiply
   38,578.50x = 57,868.50 × 57,868.50
4. Step 4: Simplify right side
   38,578.50x = 3,348,763,292.25
5. Step 5: Solve for x
   x = 3,348,763,292.25/38,578.50
6. Step 6: Final answer
   x = 86,803.88