Finding the Third Proportional to 283,800 and 620,884.50

Step by Step Solution

1. Step 1: Write the proportion equation
   283,800 : 620,884.50 = 620,884.50 : x
2. Step 2: Convert to fraction form
   283,800/620,884.50 = 620,884.50/x
3. Step 3: Cross multiply
   283,800x = 620,884.50 × 620,884.50
4. Step 4: Simplify right side
   283,800x = 385,497,562,340.25
5. Step 5: Solve for x
   x = 385,497,562,340.25/283,800
6. Step 6: Final answer
   x = 1,358,342.36