Finding the Third Proportional to 33,516.28 and 69,789.09

Step by Step Solution

1. Step 1: Write the proportion equation
   33,516.28 : 69,789.09 = 69,789.09 : x
2. Step 2: Convert to fraction form
   33,516.28/69,789.09 = 69,789.09/x
3. Step 3: Cross multiply
   33,516.28x = 69,789.09 × 69,789.09
4. Step 4: Simplify right side
   33,516.28x = 4,870,517,606.45
5. Step 5: Solve for x
   x = 4,870,517,606.45/33,516.28
6. Step 6: Final answer
   x = 145,317.96