Finding the Third Proportional to 1,218,696 and 1,780,956

Step by Step Solution

1. Step 1: Write the proportion equation
   1,218,696 : 1,780,956 = 1,780,956 : x
2. Step 2: Convert to fraction form
   1,218,696/1,780,956 = 1,780,956/x
3. Step 3: Cross multiply
   1,218,696x = 1,780,956 × 1,780,956
4. Step 4: Simplify right side
   1,218,696x = 3,171,804,273,936
5. Step 5: Solve for x
   x = 3,171,804,273,936/1,218,696
6. Step 6: Final answer
   x = 2,602,621.39