Finding the Third Proportional to 409,007 and 855,598.50

Step by Step Solution

1. Step 1: Write the proportion equation
   409,007 : 855,598.50 = 855,598.50 : x
2. Step 2: Convert to fraction form
   409,007/855,598.50 = 855,598.50/x
3. Step 3: Cross multiply
   409,007x = 855,598.50 × 855,598.50
4. Step 4: Simplify right side
   409,007x = 732,048,793,202.25
5. Step 5: Solve for x
   x = 732,048,793,202.25/409,007
6. Step 6: Final answer
   x = 1,789,819.72