Finding the Third Proportional to 69,039 and 143,362.50

Step by Step Solution

1. Step 1: Write the proportion equation
   69,039 : 143,362.50 = 143,362.50 : x
2. Step 2: Convert to fraction form
   69,039/143,362.50 = 143,362.50/x
3. Step 3: Cross multiply
   69,039x = 143,362.50 × 143,362.50
4. Step 4: Simplify right side
   69,039x = 20,552,806,406.25
5. Step 5: Solve for x
   x = 20,552,806,406.25/69,039
6. Step 6: Final answer
   x = 297,698.50