Finding the Third Proportional to 553,158.75 and 854,304

Step by Step Solution

1. Step 1: Write the proportion equation
   553,158.75 : 854,304 = 854,304 : x
2. Step 2: Convert to fraction form
   553,158.75/854,304 = 854,304/x
3. Step 3: Cross multiply
   553,158.75x = 854,304 × 854,304
4. Step 4: Simplify right side
   553,158.75x = 729,835,324,416
5. Step 5: Solve for x
   x = 729,835,324,416/553,158.75
6. Step 6: Final answer
   x = 1,319,395.79