Finding the Third Proportional to 869,016 and 1,272,413

Step by Step Solution

1. Step 1: Write the proportion equation
   869,016 : 1,272,413 = 1,272,413 : x
2. Step 2: Convert to fraction form
   869,016/1,272,413 = 1,272,413/x
3. Step 3: Cross multiply
   869,016x = 1,272,413 × 1,272,413
4. Step 4: Simplify right side
   869,016x = 1,619,034,842,569
5. Step 5: Solve for x
   x = 1,619,034,842,569/869,016
6. Step 6: Final answer
   x = 1,863,066.78