Finding the Third Proportional to 1,315,139 and 2,873,764

Step by Step Solution

1. Step 1: Write the proportion equation
   1,315,139 : 2,873,764 = 2,873,764 : x
2. Step 2: Convert to fraction form
   1,315,139/2,873,764 = 2,873,764/x
3. Step 3: Cross multiply
   1,315,139x = 2,873,764 × 2,873,764
4. Step 4: Simplify right side
   1,315,139x = 8,258,519,527,696
5. Step 5: Solve for x
   x = 8,258,519,527,696/1,315,139
6. Step 6: Final answer
   x = 6,279,579.21