Finding the Third Proportional to 283,593.50 and 425,390

Step by Step Solution

1. Step 1: Write the proportion equation
   283,593.50 : 425,390 = 425,390 : x
2. Step 2: Convert to fraction form
   283,593.50/425,390 = 425,390/x
3. Step 3: Cross multiply
   283,593.50x = 425,390 × 425,390
4. Step 4: Simplify right side
   283,593.50x = 180,956,652,100
5. Step 5: Solve for x
   x = 180,956,652,100/283,593.50
6. Step 6: Final answer
   x = 638,084.63