Finding the Third Proportional to 388,595 and 916,016

Step by Step Solution

1. Step 1: Write the proportion equation
   388,595 : 916,016 = 916,016 : x
2. Step 2: Convert to fraction form
   388,595/916,016 = 916,016/x
3. Step 3: Cross multiply
   388,595x = 916,016 × 916,016
4. Step 4: Simplify right side
   388,595x = 839,085,312,256
5. Step 5: Solve for x
   x = 839,085,312,256/388,595
6. Step 6: Final answer
   x = 2,159,279.74