Finding the Third Proportional to 1,989,687 and 4,297,065

Step by Step Solution

1. Step 1: Write the proportion equation
   1,989,687 : 4,297,065 = 4,297,065 : x
2. Step 2: Convert to fraction form
   1,989,687/4,297,065 = 4,297,065/x
3. Step 3: Cross multiply
   1,989,687x = 4,297,065 × 4,297,065
4. Step 4: Simplify right side
   1,989,687x = 18,464,767,614,225
5. Step 5: Solve for x
   x = 18,464,767,614,225/1,989,687
6. Step 6: Final answer
   x = 9,280,237.35