Finding the Third Proportional to 3,216,618 and 7,072,932

Step by Step Solution

1. Step 1: Write the proportion equation
   3,216,618 : 7,072,932 = 7,072,932 : x
2. Step 2: Convert to fraction form
   3,216,618/7,072,932 = 7,072,932/x
3. Step 3: Cross multiply
   3,216,618x = 7,072,932 × 7,072,932
4. Step 4: Simplify right side
   3,216,618x = 50,026,367,076,624
5. Step 5: Solve for x
   x = 50,026,367,076,624/3,216,618
6. Step 6: Final answer
   x = 15,552,473.77