Finding the Third Proportional to 26,628.75 and 57,409.31

Step by Step Solution

1. Step 1: Write the proportion equation
   26,628.75 : 57,409.31 = 57,409.31 : x
2. Step 2: Convert to fraction form
   26,628.75/57,409.31 = 57,409.31/x
3. Step 3: Cross multiply
   26,628.75x = 57,409.31 × 57,409.31
4. Step 4: Simplify right side
   26,628.75x = 3,295,829,161.72
5. Step 5: Solve for x
   x = 3,295,829,161.72/26,628.75
6. Step 6: Final answer
   x = 123,769.58