Finding the Third Proportional to 1,297,640 and 2,847,890

Step by Step Solution

1. Step 1: Write the proportion equation
   1,297,640 : 2,847,890 = 2,847,890 : x
2. Step 2: Convert to fraction form
   1,297,640/2,847,890 = 2,847,890/x
3. Step 3: Cross multiply
   1,297,640x = 2,847,890 × 2,847,890
4. Step 4: Simplify right side
   1,297,640x = 8,110,477,452,100
5. Step 5: Solve for x
   x = 8,110,477,452,100/1,297,640
6. Step 6: Final answer
   x = 6,250,175.28