Finding the Third Proportional to 631,329.50 and 1,380,757.50

Step by Step Solution

1. Step 1: Write the proportion equation
   631,329.50 : 1,380,757.50 = 1,380,757.50 : x
2. Step 2: Convert to fraction form
   631,329.50/1,380,757.50 = 1,380,757.50/x
3. Step 3: Cross multiply
   631,329.50x = 1,380,757.50 × 1,380,757.50
4. Step 4: Simplify right side
   631,329.50x = 1,906,491,273,806.25
5. Step 5: Solve for x
   x = 1,906,491,273,806.25/631,329.50
6. Step 6: Final answer
   x = 3,019,803.88