Finding the Third Proportional to 820,719 and 1,227,798

Step by Step Solution

1. Step 1: Write the proportion equation
   820,719 : 1,227,798 = 1,227,798 : x
2. Step 2: Convert to fraction form
   820,719/1,227,798 = 1,227,798/x
3. Step 3: Cross multiply
   820,719x = 1,227,798 × 1,227,798
4. Step 4: Simplify right side
   820,719x = 1,507,487,928,804
5. Step 5: Solve for x
   x = 1,507,487,928,804/820,719
6. Step 6: Final answer
   x = 1,836,789.36