Finding the Third Proportional to 5,748,640 and 12,517,879

Step by Step Solution

1. Step 1: Write the proportion equation
   5,748,640 : 12,517,879 = 12,517,879 : x
2. Step 2: Convert to fraction form
   5,748,640/12,517,879 = 12,517,879/x
3. Step 3: Cross multiply
   5,748,640x = 12,517,879 × 12,517,879
4. Step 4: Simplify right side
   5,748,640x = 156,697,294,658,641
5. Step 5: Solve for x
   x = 156,697,294,658,641/5,748,640
6. Step 6: Final answer
   x = 27,258,150.56