Finding the Third Proportional to 809,858 and 1,772,248

Step by Step Solution

1. Step 1: Write the proportion equation
   809,858 : 1,772,248 = 1,772,248 : x
2. Step 2: Convert to fraction form
   809,858/1,772,248 = 1,772,248/x
3. Step 3: Cross multiply
   809,858x = 1,772,248 × 1,772,248
4. Step 4: Simplify right side
   809,858x = 3,140,862,973,504
5. Step 5: Solve for x
   x = 3,140,862,973,504/809,858
6. Step 6: Final answer
   x = 3,878,288.51