Finding the Third Proportional to 3,151,756 and 4,615,840

Step by Step Solution

1. Step 1: Write the proportion equation
   3,151,756 : 4,615,840 = 4,615,840 : x
2. Step 2: Convert to fraction form
   3,151,756/4,615,840 = 4,615,840/x
3. Step 3: Cross multiply
   3,151,756x = 4,615,840 × 4,615,840
4. Step 4: Simplify right side
   3,151,756x = 21,305,978,905,600
5. Step 5: Solve for x
   x = 21,305,978,905,600/3,151,756
6. Step 6: Final answer
   x = 6,760,034.38