Finding the Third Proportional to 144,824.25 and 302,890.50

Step by Step Solution

1. Step 1: Write the proportion equation
   144,824.25 : 302,890.50 = 302,890.50 : x
2. Step 2: Convert to fraction form
   144,824.25/302,890.50 = 302,890.50/x
3. Step 3: Cross multiply
   144,824.25x = 302,890.50 × 302,890.50
4. Step 4: Simplify right side
   144,824.25x = 91,742,654,990.25
5. Step 5: Solve for x
   x = 91,742,654,990.25/144,824.25
6. Step 6: Final answer
   x = 633,475.78