Finding the Third Proportional to 283,430.50 and 622,150

Step by Step Solution

1. Step 1: Write the proportion equation
   283,430.50 : 622,150 = 622,150 : x
2. Step 2: Convert to fraction form
   283,430.50/622,150 = 622,150/x
3. Step 3: Cross multiply
   283,430.50x = 622,150 × 622,150
4. Step 4: Simplify right side
   283,430.50x = 387,070,622,500
5. Step 5: Solve for x
   x = 387,070,622,500/283,430.50
6. Step 6: Final answer
   x = 1,365,663.27