Finding the Third Proportional to 479,512.13 and 715,986

Step by Step Solution

1. Step 1: Write the proportion equation
   479,512.13 : 715,986 = 715,986 : x
2. Step 2: Convert to fraction form
   479,512.13/715,986 = 715,986/x
3. Step 3: Cross multiply
   479,512.13x = 715,986 × 715,986
4. Step 4: Simplify right side
   479,512.13x = 512,635,952,196
5. Step 5: Solve for x
   x = 512,635,952,196/479,512.13
6. Step 6: Final answer
   x = 1,069,078.18