Finding the Third Proportional to 2,521,917 and 5,223,285

Step by Step Solution

1. Step 1: Write the proportion equation
   2,521,917 : 5,223,285 = 5,223,285 : x
2. Step 2: Convert to fraction form
   2,521,917/5,223,285 = 5,223,285/x
3. Step 3: Cross multiply
   2,521,917x = 5,223,285 × 5,223,285
4. Step 4: Simplify right side
   2,521,917x = 27,282,706,191,225
5. Step 5: Solve for x
   x = 27,282,706,191,225/2,521,917
6. Step 6: Final answer
   x = 10,818,241.12