Finding the Third Proportional to 1,818,924 and 3,960,770

Step by Step Solution

1. Step 1: Write the proportion equation
   1,818,924 : 3,960,770 = 3,960,770 : x
2. Step 2: Convert to fraction form
   1,818,924/3,960,770 = 3,960,770/x
3. Step 3: Cross multiply
   1,818,924x = 3,960,770 × 3,960,770
4. Step 4: Simplify right side
   1,818,924x = 15,687,698,992,900
5. Step 5: Solve for x
   x = 15,687,698,992,900/1,818,924
6. Step 6: Final answer
   x = 8,624,713.84