Finding the Third Proportional to 864,454.50 and 1,388,946

Step by Step Solution

1. Step 1: Write the proportion equation
   864,454.50 : 1,388,946 = 1,388,946 : x
2. Step 2: Convert to fraction form
   864,454.50/1,388,946 = 1,388,946/x
3. Step 3: Cross multiply
   864,454.50x = 1,388,946 × 1,388,946
4. Step 4: Simplify right side
   864,454.50x = 1,929,170,990,916
5. Step 5: Solve for x
   x = 1,929,170,990,916/864,454.50
6. Step 6: Final answer
   x = 2,231,662.85