Finding the Third Proportional to 64,015.50 and 100,425

Step by Step Solution

1. Step 1: Write the proportion equation
   64,015.50 : 100,425 = 100,425 : x
2. Step 2: Convert to fraction form
   64,015.50/100,425 = 100,425/x
3. Step 3: Cross multiply
   64,015.50x = 100,425 × 100,425
4. Step 4: Simplify right side
   64,015.50x = 10,085,180,625
5. Step 5: Solve for x
   x = 10,085,180,625/64,015.50
6. Step 6: Final answer
   x = 157,542.79