Finding the Third Proportional to 67,215.25 and 103,172.75

Step by Step Solution

1. Step 1: Write the proportion equation
   67,215.25 : 103,172.75 = 103,172.75 : x
2. Step 2: Convert to fraction form
   67,215.25/103,172.75 = 103,172.75/x
3. Step 3: Cross multiply
   67,215.25x = 103,172.75 × 103,172.75
4. Step 4: Simplify right side
   67,215.25x = 10,644,616,342.56
5. Step 5: Solve for x
   x = 10,644,616,342.56/67,215.25
6. Step 6: Final answer
   x = 158,366.09