Finding the Third Proportional to 144,821.50 and 302,884.50

Step by Step Solution

1. Step 1: Write the proportion equation
   144,821.50 : 302,884.50 = 302,884.50 : x
2. Step 2: Convert to fraction form
   144,821.50/302,884.50 = 302,884.50/x
3. Step 3: Cross multiply
   144,821.50x = 302,884.50 × 302,884.50
4. Step 4: Simplify right side
   144,821.50x = 91,739,020,340.25
5. Step 5: Solve for x
   x = 91,739,020,340.25/144,821.50
6. Step 6: Final answer
   x = 633,462.71