Finding the Third Proportional to 1,997,779 and 4,314,775

Step by Step Solution

1. Step 1: Write the proportion equation
   1,997,779 : 4,314,775 = 4,314,775 : x
2. Step 2: Convert to fraction form
   1,997,779/4,314,775 = 4,314,775/x
3. Step 3: Cross multiply
   1,997,779x = 4,314,775 × 4,314,775
4. Step 4: Simplify right side
   1,997,779x = 18,617,283,300,625
5. Step 5: Solve for x
   x = 18,617,283,300,625/1,997,779
6. Step 6: Final answer
   x = 9,318,990.39