Finding the Third Proportional to 131,402 and 282,488

Step by Step Solution

1. Step 1: Write the proportion equation
   131,402 : 282,488 = 282,488 : x
2. Step 2: Convert to fraction form
   131,402/282,488 = 282,488/x
3. Step 3: Cross multiply
   131,402x = 282,488 × 282,488
4. Step 4: Simplify right side
   131,402x = 79,799,470,144
5. Step 5: Solve for x
   x = 79,799,470,144/131,402
6. Step 6: Final answer
   x = 607,292.66