Finding the Third Proportional to 3,618,904 and 5,513,258

Step by Step Solution

1. Step 1: Write the proportion equation
   3,618,904 : 5,513,258 = 5,513,258 : x
2. Step 2: Convert to fraction form
   3,618,904/5,513,258 = 5,513,258/x
3. Step 3: Cross multiply
   3,618,904x = 5,513,258 × 5,513,258
4. Step 4: Simplify right side
   3,618,904x = 30,396,013,774,564
5. Step 5: Solve for x
   x = 30,396,013,774,564/3,618,904
6. Step 6: Final answer
   x = 8,399,231.86