Finding the Third Proportional to 67,891.50 and 149,178.38

Step by Step Solution

1. Step 1: Write the proportion equation
   67,891.50 : 149,178.38 = 149,178.38 : x
2. Step 2: Convert to fraction form
   67,891.50/149,178.38 = 149,178.38/x
3. Step 3: Cross multiply
   67,891.50x = 149,178.38 × 149,178.38
4. Step 4: Simplify right side
   67,891.50x = 22,254,187,567.64
5. Step 5: Solve for x
   x = 22,254,187,567.64/67,891.50
6. Step 6: Final answer
   x = 327,790.48