Finding the Third Proportional to 67,152 and 146,290

Step by Step Solution

1. Step 1: Write the proportion equation
   67,152 : 146,290 = 146,290 : x
2. Step 2: Convert to fraction form
   67,152/146,290 = 146,290/x
3. Step 3: Cross multiply
   67,152x = 146,290 × 146,290
4. Step 4: Simplify right side
   67,152x = 21,400,764,100
5. Step 5: Solve for x
   x = 21,400,764,100/67,152
6. Step 6: Final answer
   x = 318,691.39