Finding the Third Proportional to 878,736 and 1,315,080

Step by Step Solution

1. Step 1: Write the proportion equation
   878,736 : 1,315,080 = 1,315,080 : x
2. Step 2: Convert to fraction form
   878,736/1,315,080 = 1,315,080/x
3. Step 3: Cross multiply
   878,736x = 1,315,080 × 1,315,080
4. Step 4: Simplify right side
   878,736x = 1,729,435,406,400
5. Step 5: Solve for x
   x = 1,729,435,406,400/878,736
6. Step 6: Final answer
   x = 1,968,094.41