Finding the Third Proportional to 611,708 and 1,266,424

Step by Step Solution

1. Step 1: Write the proportion equation
   611,708 : 1,266,424 = 1,266,424 : x
2. Step 2: Convert to fraction form
   611,708/1,266,424 = 1,266,424/x
3. Step 3: Cross multiply
   611,708x = 1,266,424 × 1,266,424
4. Step 4: Simplify right side
   611,708x = 1,603,829,747,776
5. Step 5: Solve for x
   x = 1,603,829,747,776/611,708
6. Step 6: Final answer
   x = 2,621,887.81