Finding the Third Proportional to 876,464 and 1,320,456

Step by Step Solution

1. Step 1: Write the proportion equation
   876,464 : 1,320,456 = 1,320,456 : x
2. Step 2: Convert to fraction form
   876,464/1,320,456 = 1,320,456/x
3. Step 3: Cross multiply
   876,464x = 1,320,456 × 1,320,456
4. Step 4: Simplify right side
   876,464x = 1,743,604,047,936
5. Step 5: Solve for x
   x = 1,743,604,047,936/876,464
6. Step 6: Final answer
   x = 1,989,361.85