Finding the Third Proportional to 1,288,360 and 2,831,632

Step by Step Solution

1. Step 1: Write the proportion equation
   1,288,360 : 2,831,632 = 2,831,632 : x
2. Step 2: Convert to fraction form
   1,288,360/2,831,632 = 2,831,632/x
3. Step 3: Cross multiply
   1,288,360x = 2,831,632 × 2,831,632
4. Step 4: Simplify right side
   1,288,360x = 8,018,139,783,424
5. Step 5: Solve for x
   x = 8,018,139,783,424/1,288,360
6. Step 6: Final answer
   x = 6,223,524.31