Finding the Third Proportional to 39,469.78 and 75,302.16

Step by Step Solution

1. Step 1: Write the proportion equation
   39,469.78 : 75,302.16 = 75,302.16 : x
2. Step 2: Convert to fraction form
   39,469.78/75,302.16 = 75,302.16/x
3. Step 3: Cross multiply
   39,469.78x = 75,302.16 × 75,302.16
4. Step 4: Simplify right side
   39,469.78x = 5,670,414,735.90
5. Step 5: Solve for x
   x = 5,670,414,735.90/39,469.78
6. Step 6: Final answer
   x = 143,664.71