Finding the Third Proportional to 2,578,180 and 5,529,416

Step by Step Solution

1. Step 1: Write the proportion equation
   2,578,180 : 5,529,416 = 5,529,416 : x
2. Step 2: Convert to fraction form
   2,578,180/5,529,416 = 5,529,416/x
3. Step 3: Cross multiply
   2,578,180x = 5,529,416 × 5,529,416
4. Step 4: Simplify right side
   2,578,180x = 30,574,441,301,056
5. Step 5: Solve for x
   x = 30,574,441,301,056/2,578,180
6. Step 6: Final answer
   x = 11,858,924.24