Finding the Third Proportional to 2,215,062 and 5,215,374

Step by Step Solution

1. Step 1: Write the proportion equation
   2,215,062 : 5,215,374 = 5,215,374 : x
2. Step 2: Convert to fraction form
   2,215,062/5,215,374 = 5,215,374/x
3. Step 3: Cross multiply
   2,215,062x = 5,215,374 × 5,215,374
4. Step 4: Simplify right side
   2,215,062x = 27,200,125,959,876
5. Step 5: Solve for x
   x = 27,200,125,959,876/2,215,062
6. Step 6: Final answer
   x = 12,279,622.85