Finding the Third Proportional to 1,691,770 and 2,591,236

Step by Step Solution

1. Step 1: Write the proportion equation
   1,691,770 : 2,591,236 = 2,591,236 : x
2. Step 2: Convert to fraction form
   1,691,770/2,591,236 = 2,591,236/x
3. Step 3: Cross multiply
   1,691,770x = 2,591,236 × 2,591,236
4. Step 4: Simplify right side
   1,691,770x = 6,714,504,007,696
5. Step 5: Solve for x
   x = 6,714,504,007,696/1,691,770
6. Step 6: Final answer
   x = 3,968,922.49