Finding the Third Proportional to 39,915.75 and 66,523.25

Step by Step Solution

1. Step 1: Write the proportion equation
   39,915.75 : 66,523.25 = 66,523.25 : x
2. Step 2: Convert to fraction form
   39,915.75/66,523.25 = 66,523.25/x
3. Step 3: Cross multiply
   39,915.75x = 66,523.25 × 66,523.25
4. Step 4: Simplify right side
   39,915.75x = 4,425,342,790.56
5. Step 5: Solve for x
   x = 4,425,342,790.56/39,915.75
6. Step 6: Final answer
   x = 110,867.08