Finding the Third Proportional to 143,688 and 335,604

Step by Step Solution

1. Step 1: Write the proportion equation
   143,688 : 335,604 = 335,604 : x
2. Step 2: Convert to fraction form
   143,688/335,604 = 335,604/x
3. Step 3: Cross multiply
   143,688x = 335,604 × 335,604
4. Step 4: Simplify right side
   143,688x = 112,630,044,816
5. Step 5: Solve for x
   x = 112,630,044,816/143,688
6. Step 6: Final answer
   x = 783,851.43