Finding the Third Proportional to 5,671,897 and 8,718,078

Step by Step Solution

1. Step 1: Write the proportion equation
   5,671,897 : 8,718,078 = 8,718,078 : x
2. Step 2: Convert to fraction form
   5,671,897/8,718,078 = 8,718,078/x
3. Step 3: Cross multiply
   5,671,897x = 8,718,078 × 8,718,078
4. Step 4: Simplify right side
   5,671,897x = 76,004,884,014,084
5. Step 5: Solve for x
   x = 76,004,884,014,084/5,671,897
6. Step 6: Final answer
   x = 13,400,258.15