Finding the Third Proportional to 1,288,098 and 2,831,172

Step by Step Solution

1. Step 1: Write the proportion equation
   1,288,098 : 2,831,172 = 2,831,172 : x
2. Step 2: Convert to fraction form
   1,288,098/2,831,172 = 2,831,172/x
3. Step 3: Cross multiply
   1,288,098x = 2,831,172 × 2,831,172
4. Step 4: Simplify right side
   1,288,098x = 8,015,534,893,584
5. Step 5: Solve for x
   x = 8,015,534,893,584/1,288,098
6. Step 6: Final answer
   x = 6,222,767.91