Finding the Third Proportional to 2,563,128 and 5,457,544

Step by Step Solution

1. Step 1: Write the proportion equation
   2,563,128 : 5,457,544 = 5,457,544 : x
2. Step 2: Convert to fraction form
   2,563,128/5,457,544 = 5,457,544/x
3. Step 3: Cross multiply
   2,563,128x = 5,457,544 × 5,457,544
4. Step 4: Simplify right side
   2,563,128x = 29,784,786,511,936
5. Step 5: Solve for x
   x = 29,784,786,511,936/2,563,128
6. Step 6: Final answer
   x = 11,620,483.45