Finding the Third Proportional to 2,153,686 and 3,378,969

Step by Step Solution

1. Step 1: Write the proportion equation
   2,153,686 : 3,378,969 = 3,378,969 : x
2. Step 2: Convert to fraction form
   2,153,686/3,378,969 = 3,378,969/x
3. Step 3: Cross multiply
   2,153,686x = 3,378,969 × 3,378,969
4. Step 4: Simplify right side
   2,153,686x = 11,417,431,502,961
5. Step 5: Solve for x
   x = 11,417,431,502,961/2,153,686
6. Step 6: Final answer
   x = 5,301,344.53