Finding the Third Proportional to 410,300 and 853,216

Step by Step Solution

1. Step 1: Write the proportion equation
   410,300 : 853,216 = 853,216 : x
2. Step 2: Convert to fraction form
   410,300/853,216 = 853,216/x
3. Step 3: Cross multiply
   410,300x = 853,216 × 853,216
4. Step 4: Simplify right side
   410,300x = 727,977,542,656
5. Step 5: Solve for x
   x = 727,977,542,656/410,300
6. Step 6: Final answer
   x = 1,774,256.75