Finding the Third Proportional to 715,287 and 1,002,620

Step by Step Solution

1. Step 1: Write the proportion equation
   715,287 : 1,002,620 = 1,002,620 : x
2. Step 2: Convert to fraction form
   715,287/1,002,620 = 1,002,620/x
3. Step 3: Cross multiply
   715,287x = 1,002,620 × 1,002,620
4. Step 4: Simplify right side
   715,287x = 1,005,246,864,400
5. Step 5: Solve for x
   x = 1,005,246,864,400/715,287
6. Step 6: Final answer
   x = 1,405,375.55