Finding the Third Proportional to 283,371 and 442,282.50

Step by Step Solution

1. Step 1: Write the proportion equation
   283,371 : 442,282.50 = 442,282.50 : x
2. Step 2: Convert to fraction form
   283,371/442,282.50 = 442,282.50/x
3. Step 3: Cross multiply
   283,371x = 442,282.50 × 442,282.50
4. Step 4: Simplify right side
   283,371x = 195,613,809,806.25
5. Step 5: Solve for x
   x = 195,613,809,806.25/283,371
6. Step 6: Final answer
   x = 690,309.91