Finding the Third Proportional to 67,140 and 146,259

Step by Step Solution

1. Step 1: Write the proportion equation
   67,140 : 146,259 = 146,259 : x
2. Step 2: Convert to fraction form
   67,140/146,259 = 146,259/x
3. Step 3: Cross multiply
   67,140x = 146,259 × 146,259
4. Step 4: Simplify right side
   67,140x = 21,391,695,081
5. Step 5: Solve for x
   x = 21,391,695,081/67,140
6. Step 6: Final answer
   x = 318,613.27