Finding the Third Proportional to 558,612 and 1,214,424

Step by Step Solution

1. Step 1: Write the proportion equation
   558,612 : 1,214,424 = 1,214,424 : x
2. Step 2: Convert to fraction form
   558,612/1,214,424 = 1,214,424/x
3. Step 3: Cross multiply
   558,612x = 1,214,424 × 1,214,424
4. Step 4: Simplify right side
   558,612x = 1,474,825,651,776
5. Step 5: Solve for x
   x = 1,474,825,651,776/558,612
6. Step 6: Final answer
   x = 2,640,161.06