Finding the Third Proportional to 665,886 and 1,021,185

Step by Step Solution

1. Step 1: Write the proportion equation
   665,886 : 1,021,185 = 1,021,185 : x
2. Step 2: Convert to fraction form
   665,886/1,021,185 = 1,021,185/x
3. Step 3: Cross multiply
   665,886x = 1,021,185 × 1,021,185
4. Step 4: Simplify right side
   665,886x = 1,042,818,804,225
5. Step 5: Solve for x
   x = 1,042,818,804,225/665,886
6. Step 6: Final answer
   x = 1,566,062.07