Finding the Third Proportional to 4,311,644 and 7,185,640

Step by Step Solution

1. Step 1: Write the proportion equation
   4,311,644 : 7,185,640 = 7,185,640 : x
2. Step 2: Convert to fraction form
   4,311,644/7,185,640 = 7,185,640/x
3. Step 3: Cross multiply
   4,311,644x = 7,185,640 × 7,185,640
4. Step 4: Simplify right side
   4,311,644x = 51,633,422,209,600
5. Step 5: Solve for x
   x = 51,633,422,209,600/4,311,644
6. Step 6: Final answer
   x = 11,975,344.49