Finding the Third Proportional to 1,831,269 and 3,977,781

Step by Step Solution

1. Step 1: Write the proportion equation
   1,831,269 : 3,977,781 = 3,977,781 : x
2. Step 2: Convert to fraction form
   1,831,269/3,977,781 = 3,977,781/x
3. Step 3: Cross multiply
   1,831,269x = 3,977,781 × 3,977,781
4. Step 4: Simplify right side
   1,831,269x = 15,822,741,683,961
5. Step 5: Solve for x
   x = 15,822,741,683,961/1,831,269
6. Step 6: Final answer
   x = 8,640,315.37