Finding the Third Proportional to 1,291,779 and 2,780,982

Step by Step Solution

1. Step 1: Write the proportion equation
   1,291,779 : 2,780,982 = 2,780,982 : x
2. Step 2: Convert to fraction form
   1,291,779/2,780,982 = 2,780,982/x
3. Step 3: Cross multiply
   1,291,779x = 2,780,982 × 2,780,982
4. Step 4: Simplify right side
   1,291,779x = 7,733,860,884,324
5. Step 5: Solve for x
   x = 7,733,860,884,324/1,291,779
6. Step 6: Final answer
   x = 5,986,984.53