Finding the Third Proportional to 627,398 and 1,358,131

Step by Step Solution

1. Step 1: Write the proportion equation
   627,398 : 1,358,131 = 1,358,131 : x
2. Step 2: Convert to fraction form
   627,398/1,358,131 = 1,358,131/x
3. Step 3: Cross multiply
   627,398x = 1,358,131 × 1,358,131
4. Step 4: Simplify right side
   627,398x = 1,844,519,813,161
5. Step 5: Solve for x
   x = 1,844,519,813,161/627,398
6. Step 6: Final answer
   x = 2,939,951.69