Finding the Third Proportional to 67,713.47 and 146,141.72

Step by Step Solution

1. Step 1: Write the proportion equation
   67,713.47 : 146,141.72 = 146,141.72 : x
2. Step 2: Convert to fraction form
   67,713.47/146,141.72 = 146,141.72/x
3. Step 3: Cross multiply
   67,713.47x = 146,141.72 × 146,141.72
4. Step 4: Simplify right side
   67,713.47x = 21,357,401,959.20
5. Step 5: Solve for x
   x = 21,357,401,959.20/67,713.47
6. Step 6: Final answer
   x = 315,408.48