Finding the Third Proportional to 779,078 and 1,217,824

Step by Step Solution

1. Step 1: Write the proportion equation
   779,078 : 1,217,824 = 1,217,824 : x
2. Step 2: Convert to fraction form
   779,078/1,217,824 = 1,217,824/x
3. Step 3: Cross multiply
   779,078x = 1,217,824 × 1,217,824
4. Step 4: Simplify right side
   779,078x = 1,483,095,294,976
5. Step 5: Solve for x
   x = 1,483,095,294,976/779,078
6. Step 6: Final answer
   x = 1,903,654.44