Finding the Third Proportional to 1,989,686 and 4,297,063

Step by Step Solution

1. Step 1: Write the proportion equation
   1,989,686 : 4,297,063 = 4,297,063 : x
2. Step 2: Convert to fraction form
   1,989,686/4,297,063 = 4,297,063/x
3. Step 3: Cross multiply
   1,989,686x = 4,297,063 × 4,297,063
4. Step 4: Simplify right side
   1,989,686x = 18,464,750,425,969
5. Step 5: Solve for x
   x = 18,464,750,425,969/1,989,686
6. Step 6: Final answer
   x = 9,280,233.38