Finding the Third Proportional to 644,956 and 1,342,844

Step by Step Solution

1. Step 1: Write the proportion equation
   644,956 : 1,342,844 = 1,342,844 : x
2. Step 2: Convert to fraction form
   644,956/1,342,844 = 1,342,844/x
3. Step 3: Cross multiply
   644,956x = 1,342,844 × 1,342,844
4. Step 4: Simplify right side
   644,956x = 1,803,230,008,336
5. Step 5: Solve for x
   x = 1,803,230,008,336/644,956
6. Step 6: Final answer
   x = 2,795,896.17