Finding the Third Proportional to 39,071.25 and 80,912.25

Step by Step Solution

1. Step 1: Write the proportion equation
   39,071.25 : 80,912.25 = 80,912.25 : x
2. Step 2: Convert to fraction form
   39,071.25/80,912.25 = 80,912.25/x
3. Step 3: Cross multiply
   39,071.25x = 80,912.25 × 80,912.25
4. Step 4: Simplify right side
   39,071.25x = 6,546,792,200.06
5. Step 5: Solve for x
   x = 6,546,792,200.06/39,071.25
6. Step 6: Final answer
   x = 167,560.35