Finding the Third Proportional to 1,315,220 and 2,873,960

Step by Step Solution

1. Step 1: Write the proportion equation
   1,315,220 : 2,873,960 = 2,873,960 : x
2. Step 2: Convert to fraction form
   1,315,220/2,873,960 = 2,873,960/x
3. Step 3: Cross multiply
   1,315,220x = 2,873,960 × 2,873,960
4. Step 4: Simplify right side
   1,315,220x = 8,259,646,081,600
5. Step 5: Solve for x
   x = 8,259,646,081,600/1,315,220
6. Step 6: Final answer
   x = 6,280,049.03