Finding the Third Proportional to 488,839.50 and 715,759

Step by Step Solution

1. Step 1: Write the proportion equation
   488,839.50 : 715,759 = 715,759 : x
2. Step 2: Convert to fraction form
   488,839.50/715,759 = 715,759/x
3. Step 3: Cross multiply
   488,839.50x = 715,759 × 715,759
4. Step 4: Simplify right side
   488,839.50x = 512,310,946,081
5. Step 5: Solve for x
   x = 512,310,946,081/488,839.50
6. Step 6: Final answer
   x = 1,048,014.63