Finding the Third Proportional to 631,329 and 1,380,756

Step by Step Solution

1. Step 1: Write the proportion equation
   631,329 : 1,380,756 = 1,380,756 : x
2. Step 2: Convert to fraction form
   631,329/1,380,756 = 1,380,756/x
3. Step 3: Cross multiply
   631,329x = 1,380,756 × 1,380,756
4. Step 4: Simplify right side
   631,329x = 1,906,487,131,536
5. Step 5: Solve for x
   x = 1,906,487,131,536/631,329
6. Step 6: Final answer
   x = 3,019,799.71