Finding the Third Proportional to 2,207,871 and 4,677,945

Step by Step Solution

1. Step 1: Write the proportion equation
   2,207,871 : 4,677,945 = 4,677,945 : x
2. Step 2: Convert to fraction form
   2,207,871/4,677,945 = 4,677,945/x
3. Step 3: Cross multiply
   2,207,871x = 4,677,945 × 4,677,945
4. Step 4: Simplify right side
   2,207,871x = 21,883,169,423,025
5. Step 5: Solve for x
   x = 21,883,169,423,025/2,207,871
6. Step 6: Final answer
   x = 9,911,434.78