Finding the Third Proportional to 131,478 and 282,666

Step by Step Solution

1. Step 1: Write the proportion equation
   131,478 : 282,666 = 282,666 : x
2. Step 2: Convert to fraction form
   131,478/282,666 = 282,666/x
3. Step 3: Cross multiply
   131,478x = 282,666 × 282,666
4. Step 4: Simplify right side
   131,478x = 79,900,067,556
5. Step 5: Solve for x
   x = 79,900,067,556/131,478
6. Step 6: Final answer
   x = 607,706.75