Finding the Third Proportional to 4,322,672 and 6,780,756

Step by Step Solution

1. Step 1: Write the proportion equation
   4,322,672 : 6,780,756 = 6,780,756 : x
2. Step 2: Convert to fraction form
   4,322,672/6,780,756 = 6,780,756/x
3. Step 3: Cross multiply
   4,322,672x = 6,780,756 × 6,780,756
4. Step 4: Simplify right side
   4,322,672x = 45,978,651,931,536
5. Step 5: Solve for x
   x = 45,978,651,931,536/4,322,672
6. Step 6: Final answer
   x = 10,636,627.51