Finding the Third Proportional to 867,886 and 1,778,054

Step by Step Solution

1. Step 1: Write the proportion equation
   867,886 : 1,778,054 = 1,778,054 : x
2. Step 2: Convert to fraction form
   867,886/1,778,054 = 1,778,054/x
3. Step 3: Cross multiply
   867,886x = 1,778,054 × 1,778,054
4. Step 4: Simplify right side
   867,886x = 3,161,476,026,916
5. Step 5: Solve for x
   x = 3,161,476,026,916/867,886
6. Step 6: Final answer
   x = 3,642,731.91