Finding the Third Proportional to 67,138 and 146,262

Step by Step Solution

1. Step 1: Write the proportion equation
   67,138 : 146,262 = 146,262 : x
2. Step 2: Convert to fraction form
   67,138/146,262 = 146,262/x
3. Step 3: Cross multiply
   67,138x = 146,262 × 146,262
4. Step 4: Simplify right side
   67,138x = 21,392,572,644
5. Step 5: Solve for x
   x = 21,392,572,644/67,138
6. Step 6: Final answer
   x = 318,635.83