Finding the Third Proportional to 618,287 and 1,342,323

Step by Step Solution

1. Step 1: Write the proportion equation
   618,287 : 1,342,323 = 1,342,323 : x
2. Step 2: Convert to fraction form
   618,287/1,342,323 = 1,342,323/x
3. Step 3: Cross multiply
   618,287x = 1,342,323 × 1,342,323
4. Step 4: Simplify right side
   618,287x = 1,801,831,036,329
5. Step 5: Solve for x
   x = 1,801,831,036,329/618,287
6. Step 6: Final answer
   x = 2,914,230.83