Finding the Third Proportional to 33,439.50 and 69,243.19

Step by Step Solution

1. Step 1: Write the proportion equation
   33,439.50 : 69,243.19 = 69,243.19 : x
2. Step 2: Convert to fraction form
   33,439.50/69,243.19 = 69,243.19/x
3. Step 3: Cross multiply
   33,439.50x = 69,243.19 × 69,243.19
4. Step 4: Simplify right side
   33,439.50x = 4,794,619,015.16
5. Step 5: Solve for x
   x = 4,794,619,015.16/33,439.50
6. Step 6: Final answer
   x = 143,381.90