Finding the Third Proportional to 302,860.50 and 441,144

Step by Step Solution

1. Step 1: Write the proportion equation
   302,860.50 : 441,144 = 441,144 : x
2. Step 2: Convert to fraction form
   302,860.50/441,144 = 441,144/x
3. Step 3: Cross multiply
   302,860.50x = 441,144 × 441,144
4. Step 4: Simplify right side
   302,860.50x = 194,608,028,736
5. Step 5: Solve for x
   x = 194,608,028,736/302,860.50
6. Step 6: Final answer
   x = 642,566.56