Finding the Third Proportional to 820,273 and 1,284,171

Step by Step Solution

1. Step 1: Write the proportion equation
   820,273 : 1,284,171 = 1,284,171 : x
2. Step 2: Convert to fraction form
   820,273/1,284,171 = 1,284,171/x
3. Step 3: Cross multiply
   820,273x = 1,284,171 × 1,284,171
4. Step 4: Simplify right side
   820,273x = 1,649,095,157,241
5. Step 5: Solve for x
   x = 1,649,095,157,241/820,273
6. Step 6: Final answer
   x = 2,010,422.33