Finding the Third Proportional to 698,514 and 1,488,612

Step by Step Solution

1. Step 1: Write the proportion equation
   698,514 : 1,488,612 = 1,488,612 : x
2. Step 2: Convert to fraction form
   698,514/1,488,612 = 1,488,612/x
3. Step 3: Cross multiply
   698,514x = 1,488,612 × 1,488,612
4. Step 4: Simplify right side
   698,514x = 2,215,965,686,544
5. Step 5: Solve for x
   x = 2,215,965,686,544/698,514
6. Step 6: Final answer
   x = 3,172,399.82