Finding the Third Proportional to 5,671,916 and 8,718,105

Step by Step Solution

1. Step 1: Write the proportion equation
   5,671,916 : 8,718,105 = 8,718,105 : x
2. Step 2: Convert to fraction form
   5,671,916/8,718,105 = 8,718,105/x
3. Step 3: Cross multiply
   5,671,916x = 8,718,105 × 8,718,105
4. Step 4: Simplify right side
   5,671,916x = 76,005,354,791,025
5. Step 5: Solve for x
   x = 76,005,354,791,025/5,671,916
6. Step 6: Final answer
   x = 13,400,296.27