Finding the Third Proportional to 67,988 and 147,274

Step by Step Solution

1. Step 1: Write the proportion equation
   67,988 : 147,274 = 147,274 : x
2. Step 2: Convert to fraction form
   67,988/147,274 = 147,274/x
3. Step 3: Cross multiply
   67,988x = 147,274 × 147,274
4. Step 4: Simplify right side
   67,988x = 21,689,631,076
5. Step 5: Solve for x
   x = 21,689,631,076/67,988
6. Step 6: Final answer
   x = 319,021.46