Finding the Third Proportional to 1,617,761 and 3,553,555

Step by Step Solution

1. Step 1: Write the proportion equation
   1,617,761 : 3,553,555 = 3,553,555 : x
2. Step 2: Convert to fraction form
   1,617,761/3,553,555 = 3,553,555/x
3. Step 3: Cross multiply
   1,617,761x = 3,553,555 × 3,553,555
4. Step 4: Simplify right side
   1,617,761x = 12,627,753,138,025
5. Step 5: Solve for x
   x = 12,627,753,138,025/1,617,761
6. Step 6: Final answer
   x = 7,805,697.59