Finding the Third Proportional to 856,290 and 1,863,322

Step by Step Solution

1. Step 1: Write the proportion equation
   856,290 : 1,863,322 = 1,863,322 : x
2. Step 2: Convert to fraction form
   856,290/1,863,322 = 1,863,322/x
3. Step 3: Cross multiply
   856,290x = 1,863,322 × 1,863,322
4. Step 4: Simplify right side
   856,290x = 3,471,968,875,684
5. Step 5: Solve for x
   x = 3,471,968,875,684/856,290
6. Step 6: Final answer
   x = 4,054,664.75