Finding the Third Proportional to 2,139,816 and 3,174,336

Step by Step Solution

1. Step 1: Write the proportion equation
   2,139,816 : 3,174,336 = 3,174,336 : x
2. Step 2: Convert to fraction form
   2,139,816/3,174,336 = 3,174,336/x
3. Step 3: Cross multiply
   2,139,816x = 3,174,336 × 3,174,336
4. Step 4: Simplify right side
   2,139,816x = 10,076,409,040,896
5. Step 5: Solve for x
   x = 10,076,409,040,896/2,139,816
6. Step 6: Final answer
   x = 4,709,007.24