Finding the Third Proportional to 3,913,086 and 5,145,684

Step by Step Solution

1. Step 1: Write the proportion equation
   3,913,086 : 5,145,684 = 5,145,684 : x
2. Step 2: Convert to fraction form
   3,913,086/5,145,684 = 5,145,684/x
3. Step 3: Cross multiply
   3,913,086x = 5,145,684 × 5,145,684
4. Step 4: Simplify right side
   3,913,086x = 26,478,063,827,856
5. Step 5: Solve for x
   x = 26,478,063,827,856/3,913,086
6. Step 6: Final answer
   x = 6,766,542.78