Finding the Third Proportional to 1,679,766 and 3,639,468

Step by Step Solution

1. Step 1: Write the proportion equation
   1,679,766 : 3,639,468 = 3,639,468 : x
2. Step 2: Convert to fraction form
   1,679,766/3,639,468 = 3,639,468/x
3. Step 3: Cross multiply
   1,679,766x = 3,639,468 × 3,639,468
4. Step 4: Simplify right side
   1,679,766x = 13,245,727,323,024
5. Step 5: Solve for x
   x = 13,245,727,323,024/1,679,766
6. Step 6: Final answer
   x = 7,885,459.83