Finding the Third Proportional to 866,178 and 1,787,277

Step by Step Solution

1. Step 1: Write the proportion equation
   866,178 : 1,787,277 = 1,787,277 : x
2. Step 2: Convert to fraction form
   866,178/1,787,277 = 1,787,277/x
3. Step 3: Cross multiply
   866,178x = 1,787,277 × 1,787,277
4. Step 4: Simplify right side
   866,178x = 3,194,359,074,729
5. Step 5: Solve for x
   x = 3,194,359,074,729/866,178
6. Step 6: Final answer
   x = 3,687,878.33