Finding the Third Proportional to 2,550,891 and 5,599,385

Step by Step Solution

1. Step 1: Write the proportion equation
   2,550,891 : 5,599,385 = 5,599,385 : x
2. Step 2: Convert to fraction form
   2,550,891/5,599,385 = 5,599,385/x
3. Step 3: Cross multiply
   2,550,891x = 5,599,385 × 5,599,385
4. Step 4: Simplify right side
   2,550,891x = 31,353,112,378,225
5. Step 5: Solve for x
   x = 31,353,112,378,225/2,550,891
6. Step 6: Final answer
   x = 12,291,043.55