Finding the Third Proportional to 2,000,858 and 4,381,216

Step by Step Solution

1. Step 1: Write the proportion equation
   2,000,858 : 4,381,216 = 4,381,216 : x
2. Step 2: Convert to fraction form
   2,000,858/4,381,216 = 4,381,216/x
3. Step 3: Cross multiply
   2,000,858x = 4,381,216 × 4,381,216
4. Step 4: Simplify right side
   2,000,858x = 19,195,053,638,656
5. Step 5: Solve for x
   x = 19,195,053,638,656/2,000,858
6. Step 6: Final answer
   x = 9,593,411.25