Finding the Third Proportional to 577,544 and 888,870

Step by Step Solution

1. Step 1: Write the proportion equation
   577,544 : 888,870 = 888,870 : x
2. Step 2: Convert to fraction form
   577,544/888,870 = 888,870/x
3. Step 3: Cross multiply
   577,544x = 888,870 × 888,870
4. Step 4: Simplify right side
   577,544x = 790,089,876,900
5. Step 5: Solve for x
   x = 790,089,876,900/577,544
6. Step 6: Final answer
   x = 1,368,016.77