Finding the Third Proportional to 2,217,942 and 4,516,278

Step by Step Solution

1. Step 1: Write the proportion equation
   2,217,942 : 4,516,278 = 4,516,278 : x
2. Step 2: Convert to fraction form
   2,217,942/4,516,278 = 4,516,278/x
3. Step 3: Cross multiply
   2,217,942x = 4,516,278 × 4,516,278
4. Step 4: Simplify right side
   2,217,942x = 20,396,766,973,284
5. Step 5: Solve for x
   x = 20,396,766,973,284/2,217,942
6. Step 6: Final answer
   x = 9,196,258.05