Finding the Third Proportional to 552,589.50 and 855,858

Step by Step Solution

1. Step 1: Write the proportion equation
   552,589.50 : 855,858 = 855,858 : x
2. Step 2: Convert to fraction form
   552,589.50/855,858 = 855,858/x
3. Step 3: Cross multiply
   552,589.50x = 855,858 × 855,858
4. Step 4: Simplify right side
   552,589.50x = 732,492,916,164
5. Step 5: Solve for x
   x = 732,492,916,164/552,589.50
6. Step 6: Final answer
   x = 1,325,564.30