Finding the Third Proportional to 3,151,766 and 4,615,855

Step by Step Solution

1. Step 1: Write the proportion equation
   3,151,766 : 4,615,855 = 4,615,855 : x
2. Step 2: Convert to fraction form
   3,151,766/4,615,855 = 4,615,855/x
3. Step 3: Cross multiply
   3,151,766x = 4,615,855 × 4,615,855
4. Step 4: Simplify right side
   3,151,766x = 21,306,117,381,025
5. Step 5: Solve for x
   x = 21,306,117,381,025/3,151,766
6. Step 6: Final answer
   x = 6,760,056.86