Finding the Third Proportional to 67,426.50 and 146,739

Step by Step Solution

1. Step 1: Write the proportion equation
   67,426.50 : 146,739 = 146,739 : x
2. Step 2: Convert to fraction form
   67,426.50/146,739 = 146,739/x
3. Step 3: Cross multiply
   67,426.50x = 146,739 × 146,739
4. Step 4: Simplify right side
   67,426.50x = 21,532,334,121
5. Step 5: Solve for x
   x = 21,532,334,121/67,426.50
6. Step 6: Final answer
   x = 319,345.27