Finding the Third Proportional to 985,240 and 2,117,824

Step by Step Solution

1. Step 1: Write the proportion equation
   985,240 : 2,117,824 = 2,117,824 : x
2. Step 2: Convert to fraction form
   985,240/2,117,824 = 2,117,824/x
3. Step 3: Cross multiply
   985,240x = 2,117,824 × 2,117,824
4. Step 4: Simplify right side
   985,240x = 4,485,178,494,976
5. Step 5: Solve for x
   x = 4,485,178,494,976/985,240
6. Step 6: Final answer
   x = 4,552,371.50