Finding the Third Proportional to 1,989,680 and 4,297,051

Step by Step Solution

1. Step 1: Write the proportion equation
   1,989,680 : 4,297,051 = 4,297,051 : x
2. Step 2: Convert to fraction form
   1,989,680/4,297,051 = 4,297,051/x
3. Step 3: Cross multiply
   1,989,680x = 4,297,051 × 4,297,051
4. Step 4: Simplify right side
   1,989,680x = 18,464,647,296,601
5. Step 5: Solve for x
   x = 18,464,647,296,601/1,989,680
6. Step 6: Final answer
   x = 9,280,209.53