Finding the Third Proportional to 1,200,491 and 1,831,230

Step by Step Solution

1. Step 1: Write the proportion equation
   1,200,491 : 1,831,230 = 1,831,230 : x
2. Step 2: Convert to fraction form
   1,200,491/1,831,230 = 1,831,230/x
3. Step 3: Cross multiply
   1,200,491x = 1,831,230 × 1,831,230
4. Step 4: Simplify right side
   1,200,491x = 3,353,403,312,900
5. Step 5: Solve for x
   x = 3,353,403,312,900/1,200,491
6. Step 6: Final answer
   x = 2,793,359.81