Finding the Third Proportional to 1,306,458 and 1,998,567

Step by Step Solution

1. Step 1: Write the proportion equation
   1,306,458 : 1,998,567 = 1,998,567 : x
2. Step 2: Convert to fraction form
   1,306,458/1,998,567 = 1,998,567/x
3. Step 3: Cross multiply
   1,306,458x = 1,998,567 × 1,998,567
4. Step 4: Simplify right side
   1,306,458x = 3,994,270,053,489
5. Step 5: Solve for x
   x = 3,994,270,053,489/1,306,458
6. Step 6: Final answer
   x = 3,057,327.56