Finding the Third Proportional to 66,492 and 142,245

Step by Step Solution

1. Step 1: Write the proportion equation
   66,492 : 142,245 = 142,245 : x
2. Step 2: Convert to fraction form
   66,492/142,245 = 142,245/x
3. Step 3: Cross multiply
   66,492x = 142,245 × 142,245
4. Step 4: Simplify right side
   66,492x = 20,233,640,025
5. Step 5: Solve for x
   x = 20,233,640,025/66,492
6. Step 6: Final answer
   x = 304,301.87