Finding the Third Proportional to 820,270 and 1,757,180

Step by Step Solution

1. Step 1: Write the proportion equation
   820,270 : 1,757,180 = 1,757,180 : x
2. Step 2: Convert to fraction form
   820,270/1,757,180 = 1,757,180/x
3. Step 3: Cross multiply
   820,270x = 1,757,180 × 1,757,180
4. Step 4: Simplify right side
   820,270x = 3,087,681,552,400
5. Step 5: Solve for x
   x = 3,087,681,552,400/820,270
6. Step 6: Final answer
   x = 3,764,225.87