Finding the Third Proportional to 1,017,009 and 1,381,212

Step by Step Solution

1. Step 1: Write the proportion equation
   1,017,009 : 1,381,212 = 1,381,212 : x
2. Step 2: Convert to fraction form
   1,017,009/1,381,212 = 1,381,212/x
3. Step 3: Cross multiply
   1,017,009x = 1,381,212 × 1,381,212
4. Step 4: Simplify right side
   1,017,009x = 1,907,746,588,944
5. Step 5: Solve for x
   x = 1,907,746,588,944/1,017,009
6. Step 6: Final answer
   x = 1,875,840.42