Finding the Third Proportional to 67,212.28 and 103,168.69

Step by Step Solution

1. Step 1: Write the proportion equation
   67,212.28 : 103,168.69 = 103,168.69 : x
2. Step 2: Convert to fraction form
   67,212.28/103,168.69 = 103,168.69/x
3. Step 3: Cross multiply
   67,212.28x = 103,168.69 × 103,168.69
4. Step 4: Simplify right side
   67,212.28x = 10,643,778,080.47
5. Step 5: Solve for x
   x = 10,643,778,080.47/67,212.28
6. Step 6: Final answer
   x = 158,360.61