Finding the Third Proportional to 282,348.50 and 402,479

Step by Step Solution

1. Step 1: Write the proportion equation
   282,348.50 : 402,479 = 402,479 : x
2. Step 2: Convert to fraction form
   282,348.50/402,479 = 402,479/x
3. Step 3: Cross multiply
   282,348.50x = 402,479 × 402,479
4. Step 4: Simplify right side
   282,348.50x = 161,989,345,441
5. Step 5: Solve for x
   x = 161,989,345,441/282,348.50
6. Step 6: Final answer
   x = 573,721.29