Finding the Third Proportional to 2,115,788 and 3,223,258

Step by Step Solution

1. Step 1: Write the proportion equation
   2,115,788 : 3,223,258 = 3,223,258 : x
2. Step 2: Convert to fraction form
   2,115,788/3,223,258 = 3,223,258/x
3. Step 3: Cross multiply
   2,115,788x = 3,223,258 × 3,223,258
4. Step 4: Simplify right side
   2,115,788x = 10,389,392,134,564
5. Step 5: Solve for x
   x = 10,389,392,134,564/2,115,788
6. Step 6: Final answer
   x = 4,910,412.64