Finding the Third Proportional to 865,212 and 1,863,534

Step by Step Solution

1. Step 1: Write the proportion equation
   865,212 : 1,863,534 = 1,863,534 : x
2. Step 2: Convert to fraction form
   865,212/1,863,534 = 1,863,534/x
3. Step 3: Cross multiply
   865,212x = 1,863,534 × 1,863,534
4. Step 4: Simplify right side
   865,212x = 3,472,758,969,156
5. Step 5: Solve for x
   x = 3,472,758,969,156/865,212
6. Step 6: Final answer
   x = 4,013,766.53