Finding the Third Proportional to 282,786.50 and 609,853

Step by Step Solution

1. Step 1: Write the proportion equation
   282,786.50 : 609,853 = 609,853 : x
2. Step 2: Convert to fraction form
   282,786.50/609,853 = 609,853/x
3. Step 3: Cross multiply
   282,786.50x = 609,853 × 609,853
4. Step 4: Simplify right side
   282,786.50x = 371,920,681,609
5. Step 5: Solve for x
   x = 371,920,681,609/282,786.50
6. Step 6: Final answer
   x = 1,315,199.56