Finding the Third Proportional to 2,553,194 and 5,509,867

Step by Step Solution

1. Step 1: Write the proportion equation
   2,553,194 : 5,509,867 = 5,509,867 : x
2. Step 2: Convert to fraction form
   2,553,194/5,509,867 = 5,509,867/x
3. Step 3: Cross multiply
   2,553,194x = 5,509,867 × 5,509,867
4. Step 4: Simplify right side
   2,553,194x = 30,358,634,357,689
5. Step 5: Solve for x
   x = 30,358,634,357,689/2,553,194
6. Step 6: Final answer
   x = 11,890,453.43