Finding the Third Proportional to 809,820 and 1,772,184

Step by Step Solution

1. Step 1: Write the proportion equation
   809,820 : 1,772,184 = 1,772,184 : x
2. Step 2: Convert to fraction form
   809,820/1,772,184 = 1,772,184/x
3. Step 3: Cross multiply
   809,820x = 1,772,184 × 1,772,184
4. Step 4: Simplify right side
   809,820x = 3,140,636,129,856
5. Step 5: Solve for x
   x = 3,140,636,129,856/809,820
6. Step 6: Final answer
   x = 3,878,190.38