Finding the Third Proportional to 67,447.69 and 146,817.56

Step by Step Solution

1. Step 1: Write the proportion equation
   67,447.69 : 146,817.56 = 146,817.56 : x
2. Step 2: Convert to fraction form
   67,447.69/146,817.56 = 146,817.56/x
3. Step 3: Cross multiply
   67,447.69x = 146,817.56 × 146,817.56
4. Step 4: Simplify right side
   67,447.69x = 21,555,396,658.44
5. Step 5: Solve for x
   x = 21,555,396,658.44/67,447.69
6. Step 6: Final answer
   x = 319,586.89