Finding the Third Proportional to 282,717 and 615,370.50

Step by Step Solution

1. Step 1: Write the proportion equation
   282,717 : 615,370.50 = 615,370.50 : x
2. Step 2: Convert to fraction form
   282,717/615,370.50 = 615,370.50/x
3. Step 3: Cross multiply
   282,717x = 615,370.50 × 615,370.50
4. Step 4: Simplify right side
   282,717x = 378,680,852,270.25
5. Step 5: Solve for x
   x = 378,680,852,270.25/282,717
6. Step 6: Final answer
   x = 1,339,434.32