Finding the Third Proportional to 1,065,390 and 2,288,888

Step by Step Solution

1. Step 1: Write the proportion equation
   1,065,390 : 2,288,888 = 2,288,888 : x
2. Step 2: Convert to fraction form
   1,065,390/2,288,888 = 2,288,888/x
3. Step 3: Cross multiply
   1,065,390x = 2,288,888 × 2,288,888
4. Step 4: Simplify right side
   1,065,390x = 5,239,008,276,544
5. Step 5: Solve for x
   x = 5,239,008,276,544/1,065,390
6. Step 6: Final answer
   x = 4,917,455.84