Finding the Third Proportional to 430,983 and 682,105.50

Step by Step Solution

1. Step 1: Write the proportion equation
   430,983 : 682,105.50 = 682,105.50 : x
2. Step 2: Convert to fraction form
   430,983/682,105.50 = 682,105.50/x
3. Step 3: Cross multiply
   430,983x = 682,105.50 × 682,105.50
4. Step 4: Simplify right side
   430,983x = 465,267,913,130.25
5. Step 5: Solve for x
   x = 465,267,913,130.25/430,983
6. Step 6: Final answer
   x = 1,079,550.50