Finding the Third Proportional to 865,836 and 1,265,238

Step by Step Solution

1. Step 1: Write the proportion equation
   865,836 : 1,265,238 = 1,265,238 : x
2. Step 2: Convert to fraction form
   865,836/1,265,238 = 1,265,238/x
3. Step 3: Cross multiply
   865,836x = 1,265,238 × 1,265,238
4. Step 4: Simplify right side
   865,836x = 1,600,827,196,644
5. Step 5: Solve for x
   x = 1,600,827,196,644/865,836
6. Step 6: Final answer
   x = 1,848,880.38