Finding the Third Proportional to 644,812 and 1,341,956

Step by Step Solution

1. Step 1: Write the proportion equation
   644,812 : 1,341,956 = 1,341,956 : x
2. Step 2: Convert to fraction form
   644,812/1,341,956 = 1,341,956/x
3. Step 3: Cross multiply
   644,812x = 1,341,956 × 1,341,956
4. Step 4: Simplify right side
   644,812x = 1,800,845,905,936
5. Step 5: Solve for x
   x = 1,800,845,905,936/644,812
6. Step 6: Final answer
   x = 2,792,823.19