Finding the Third Proportional to 67,840 and 148,640

Step by Step Solution

1. Step 1: Write the proportion equation
   67,840 : 148,640 = 148,640 : x
2. Step 2: Convert to fraction form
   67,840/148,640 = 148,640/x
3. Step 3: Cross multiply
   67,840x = 148,640 × 148,640
4. Step 4: Simplify right side
   67,840x = 22,093,849,600
5. Step 5: Solve for x
   x = 22,093,849,600/67,840
6. Step 6: Final answer
   x = 325,675.85