Finding the Third Proportional to 1,315,872 and 2,831,328

Step by Step Solution

1. Step 1: Write the proportion equation
   1,315,872 : 2,831,328 = 2,831,328 : x
2. Step 2: Convert to fraction form
   1,315,872/2,831,328 = 2,831,328/x
3. Step 3: Cross multiply
   1,315,872x = 2,831,328 × 2,831,328
4. Step 4: Simplify right side
   1,315,872x = 8,016,418,243,584
5. Step 5: Solve for x
   x = 8,016,418,243,584/1,315,872
6. Step 6: Final answer
   x = 6,092,095.77