Finding the Third Proportional to 1,679,767 and 3,639,470

Step by Step Solution

1. Step 1: Write the proportion equation
   1,679,767 : 3,639,470 = 3,639,470 : x
2. Step 2: Convert to fraction form
   1,679,767/3,639,470 = 3,639,470/x
3. Step 3: Cross multiply
   1,679,767x = 3,639,470 × 3,639,470
4. Step 4: Simplify right side
   1,679,767x = 13,245,741,880,900
5. Step 5: Solve for x
   x = 13,245,741,880,900/1,679,767
6. Step 6: Final answer
   x = 7,885,463.81