Finding the Third Proportional to 869,414 and 1,867,366

Step by Step Solution

1. Step 1: Write the proportion equation
   869,414 : 1,867,366 = 1,867,366 : x
2. Step 2: Convert to fraction form
   869,414/1,867,366 = 1,867,366/x
3. Step 3: Cross multiply
   869,414x = 1,867,366 × 1,867,366
4. Step 4: Simplify right side
   869,414x = 3,487,055,777,956
5. Step 5: Solve for x
   x = 3,487,055,777,956/869,414
6. Step 6: Final answer
   x = 4,010,811.62