Finding the Third Proportional to 3,147,870 and 6,777,342

Step by Step Solution

1. Step 1: Write the proportion equation
   3,147,870 : 6,777,342 = 6,777,342 : x
2. Step 2: Convert to fraction form
   3,147,870/6,777,342 = 6,777,342/x
3. Step 3: Cross multiply
   3,147,870x = 6,777,342 × 6,777,342
4. Step 4: Simplify right side
   3,147,870x = 45,932,364,584,964
5. Step 5: Solve for x
   x = 45,932,364,584,964/3,147,870
6. Step 6: Final answer
   x = 14,591,569.72