Finding the Third Proportional to 867,906 and 1,778,091

Step by Step Solution

1. Step 1: Write the proportion equation
   867,906 : 1,778,091 = 1,778,091 : x
2. Step 2: Convert to fraction form
   867,906/1,778,091 = 1,778,091/x
3. Step 3: Cross multiply
   867,906x = 1,778,091 × 1,778,091
4. Step 4: Simplify right side
   867,906x = 3,161,607,604,281
5. Step 5: Solve for x
   x = 3,161,607,604,281/867,906
6. Step 6: Final answer
   x = 3,642,799.57