Finding the Third Proportional to 939,856 and 1,410,072

Step by Step Solution

1. Step 1: Write the proportion equation
   939,856 : 1,410,072 = 1,410,072 : x
2. Step 2: Convert to fraction form
   939,856/1,410,072 = 1,410,072/x
3. Step 3: Cross multiply
   939,856x = 1,410,072 × 1,410,072
4. Step 4: Simplify right side
   939,856x = 1,988,303,045,184
5. Step 5: Solve for x
   x = 1,988,303,045,184/939,856
6. Step 6: Final answer
   x = 2,115,540.09