Finding the Third Proportional to 1,305,998 and 1,978,749

Step by Step Solution

1. Step 1: Write the proportion equation
   1,305,998 : 1,978,749 = 1,978,749 : x
2. Step 2: Convert to fraction form
   1,305,998/1,978,749 = 1,978,749/x
3. Step 3: Cross multiply
   1,305,998x = 1,978,749 × 1,978,749
4. Step 4: Simplify right side
   1,305,998x = 3,915,447,605,001
5. Step 5: Solve for x
   x = 3,915,447,605,001/1,305,998
6. Step 6: Final answer
   x = 2,998,050.23