Finding the Third Proportional to 876,828 and 1,321,036

Step by Step Solution

1. Step 1: Write the proportion equation
   876,828 : 1,321,036 = 1,321,036 : x
2. Step 2: Convert to fraction form
   876,828/1,321,036 = 1,321,036/x
3. Step 3: Cross multiply
   876,828x = 1,321,036 × 1,321,036
4. Step 4: Simplify right side
   876,828x = 1,745,136,113,296
5. Step 5: Solve for x
   x = 1,745,136,113,296/876,828
6. Step 6: Final answer
   x = 1,990,283.29