Finding the Third Proportional to 143,604 and 294,336

Step by Step Solution

1. Step 1: Write the proportion equation
   143,604 : 294,336 = 294,336 : x
2. Step 2: Convert to fraction form
   143,604/294,336 = 294,336/x
3. Step 3: Cross multiply
   143,604x = 294,336 × 294,336
4. Step 4: Simplify right side
   143,604x = 86,633,680,896
5. Step 5: Solve for x
   x = 86,633,680,896/143,604
6. Step 6: Final answer
   x = 603,281.81