Finding the Third Proportional to 776,990 and 1,831,586

Step by Step Solution

1. Step 1: Write the proportion equation
   776,990 : 1,831,586 = 1,831,586 : x
2. Step 2: Convert to fraction form
   776,990/1,831,586 = 1,831,586/x
3. Step 3: Cross multiply
   776,990x = 1,831,586 × 1,831,586
4. Step 4: Simplify right side
   776,990x = 3,354,707,275,396
5. Step 5: Solve for x
   x = 3,354,707,275,396/776,990
6. Step 6: Final answer
   x = 4,317,568.15