Finding the Third Proportional to 67,494 and 146,640

Step by Step Solution

1. Step 1: Write the proportion equation
   67,494 : 146,640 = 146,640 : x
2. Step 2: Convert to fraction form
   67,494/146,640 = 146,640/x
3. Step 3: Cross multiply
   67,494x = 146,640 × 146,640
4. Step 4: Simplify right side
   67,494x = 21,503,289,600
5. Step 5: Solve for x
   x = 21,503,289,600/67,494
6. Step 6: Final answer
   x = 318,595.57