Finding the Third Proportional to 2,578,308 and 5,368,336

Step by Step Solution

1. Step 1: Write the proportion equation
   2,578,308 : 5,368,336 = 5,368,336 : x
2. Step 2: Convert to fraction form
   2,578,308/5,368,336 = 5,368,336/x
3. Step 3: Cross multiply
   2,578,308x = 5,368,336 × 5,368,336
4. Step 4: Simplify right side
   2,578,308x = 28,819,031,408,896
5. Step 5: Solve for x
   x = 28,819,031,408,896/2,578,308
6. Step 6: Final answer
   x = 11,177,497.57