Finding the Third Proportional to 1,118,866 and 1,720,770

Step by Step Solution

1. Step 1: Write the proportion equation
   1,118,866 : 1,720,770 = 1,720,770 : x
2. Step 2: Convert to fraction form
   1,118,866/1,720,770 = 1,720,770/x
3. Step 3: Cross multiply
   1,118,866x = 1,720,770 × 1,720,770
4. Step 4: Simplify right side
   1,118,866x = 2,961,049,392,900
5. Step 5: Solve for x
   x = 2,961,049,392,900/1,118,866
6. Step 6: Final answer
   x = 2,646,473.66