Finding the Third Proportional to 866,216 and 1,827,216

Step by Step Solution

1. Step 1: Write the proportion equation
   866,216 : 1,827,216 = 1,827,216 : x
2. Step 2: Convert to fraction form
   866,216/1,827,216 = 1,827,216/x
3. Step 3: Cross multiply
   866,216x = 1,827,216 × 1,827,216
4. Step 4: Simplify right side
   866,216x = 3,338,718,310,656
5. Step 5: Solve for x
   x = 3,338,718,310,656/866,216
6. Step 6: Final answer
   x = 3,854,371.55