Finding the Third Proportional to 2,554,910 and 5,563,420

Step by Step Solution

1. Step 1: Write the proportion equation
   2,554,910 : 5,563,420 = 5,563,420 : x
2. Step 2: Convert to fraction form
   2,554,910/5,563,420 = 5,563,420/x
3. Step 3: Cross multiply
   2,554,910x = 5,563,420 × 5,563,420
4. Step 4: Simplify right side
   2,554,910x = 30,951,642,096,400
5. Step 5: Solve for x
   x = 30,951,642,096,400/2,554,910
6. Step 6: Final answer
   x = 12,114,572.37