Finding the Third Proportional to 809,820 and 1,772,181

Step by Step Solution

1. Step 1: Write the proportion equation
   809,820 : 1,772,181 = 1,772,181 : x
2. Step 2: Convert to fraction form
   809,820/1,772,181 = 1,772,181/x
3. Step 3: Cross multiply
   809,820x = 1,772,181 × 1,772,181
4. Step 4: Simplify right side
   809,820x = 3,140,625,496,761
5. Step 5: Solve for x
   x = 3,140,625,496,761/809,820
6. Step 6: Final answer
   x = 3,878,177.25