Finding the Third Proportional to 67,986 and 147,270

Step by Step Solution

1. Step 1: Write the proportion equation
   67,986 : 147,270 = 147,270 : x
2. Step 2: Convert to fraction form
   67,986/147,270 = 147,270/x
3. Step 3: Cross multiply
   67,986x = 147,270 × 147,270
4. Step 4: Simplify right side
   67,986x = 21,688,452,900
5. Step 5: Solve for x
   x = 21,688,452,900/67,986
6. Step 6: Final answer
   x = 319,013.52