Finding the Third Proportional to 2,874,339 and 6,258,978

Step by Step Solution

1. Step 1: Write the proportion equation
   2,874,339 : 6,258,978 = 6,258,978 : x
2. Step 2: Convert to fraction form
   2,874,339/6,258,978 = 6,258,978/x
3. Step 3: Cross multiply
   2,874,339x = 6,258,978 × 6,258,978
4. Step 4: Simplify right side
   2,874,339x = 39,174,805,604,484
5. Step 5: Solve for x
   x = 39,174,805,604,484/2,874,339
6. Step 6: Final answer
   x = 13,629,152.86