Finding the Third Proportional to 410,118.75 and 641,088

Step by Step Solution

1. Step 1: Write the proportion equation
   410,118.75 : 641,088 = 641,088 : x
2. Step 2: Convert to fraction form
   410,118.75/641,088 = 641,088/x
3. Step 3: Cross multiply
   410,118.75x = 641,088 × 641,088
4. Step 4: Simplify right side
   410,118.75x = 410,993,823,744
5. Step 5: Solve for x
   x = 410,993,823,744/410,118.75
6. Step 6: Final answer
   x = 1,002,133.71