Finding the Third Proportional to 69,385.50 and 143,694

Step by Step Solution

1. Step 1: Write the proportion equation
   69,385.50 : 143,694 = 143,694 : x
2. Step 2: Convert to fraction form
   69,385.50/143,694 = 143,694/x
3. Step 3: Cross multiply
   69,385.50x = 143,694 × 143,694
4. Step 4: Simplify right side
   69,385.50x = 20,647,965,636
5. Step 5: Solve for x
   x = 20,647,965,636/69,385.50
6. Step 6: Final answer
   x = 297,583.29