Finding the Third Proportional to 39,435 and 57,616.50

Step by Step Solution

1. Step 1: Write the proportion equation
   39,435 : 57,616.50 = 57,616.50 : x
2. Step 2: Convert to fraction form
   39,435/57,616.50 = 57,616.50/x
3. Step 3: Cross multiply
   39,435x = 57,616.50 × 57,616.50
4. Step 4: Simplify right side
   39,435x = 3,319,661,072.25
5. Step 5: Solve for x
   x = 3,319,661,072.25/39,435
6. Step 6: Final answer
   x = 84,180.58