Finding the Third Proportional to 141,288 and 308,820

Step by Step Solution

1. Step 1: Write the proportion equation
   141,288 : 308,820 = 308,820 : x
2. Step 2: Convert to fraction form
   141,288/308,820 = 308,820/x
3. Step 3: Cross multiply
   141,288x = 308,820 × 308,820
4. Step 4: Simplify right side
   141,288x = 95,369,792,400
5. Step 5: Solve for x
   x = 95,369,792,400/141,288
6. Step 6: Final answer
   x = 675,002.78