Finding the Third Proportional to 3,965,144 and 8,441,776

Step by Step Solution

1. Step 1: Write the proportion equation
   3,965,144 : 8,441,776 = 8,441,776 : x
2. Step 2: Convert to fraction form
   3,965,144/8,441,776 = 8,441,776/x
3. Step 3: Cross multiply
   3,965,144x = 8,441,776 × 8,441,776
4. Step 4: Simplify right side
   3,965,144x = 71,263,582,034,176
5. Step 5: Solve for x
   x = 71,263,582,034,176/3,965,144
6. Step 6: Final answer
   x = 17,972,507.94