Finding the Third Proportional to 1,288,056 and 2,831,088

Step by Step Solution

1. Step 1: Write the proportion equation
   1,288,056 : 2,831,088 = 2,831,088 : x
2. Step 2: Convert to fraction form
   1,288,056/2,831,088 = 2,831,088/x
3. Step 3: Cross multiply
   1,288,056x = 2,831,088 × 2,831,088
4. Step 4: Simplify right side
   1,288,056x = 8,015,059,263,744
5. Step 5: Solve for x
   x = 8,015,059,263,744/1,288,056
6. Step 6: Final answer
   x = 6,222,601.55