Finding the Third Proportional to 1,318,978 and 2,842,708

Step by Step Solution

1. Step 1: Write the proportion equation
   1,318,978 : 2,842,708 = 2,842,708 : x
2. Step 2: Convert to fraction form
   1,318,978/2,842,708 = 2,842,708/x
3. Step 3: Cross multiply
   1,318,978x = 2,842,708 × 2,842,708
4. Step 4: Simplify right side
   1,318,978x = 8,080,988,773,264
5. Step 5: Solve for x
   x = 8,080,988,773,264/1,318,978
6. Step 6: Final answer
   x = 6,126,704.75