Finding the Third Proportional to 1,617,918 and 3,510,858

Step by Step Solution

1. Step 1: Write the proportion equation
   1,617,918 : 3,510,858 = 3,510,858 : x
2. Step 2: Convert to fraction form
   1,617,918/3,510,858 = 3,510,858/x
3. Step 3: Cross multiply
   1,617,918x = 3,510,858 × 3,510,858
4. Step 4: Simplify right side
   1,617,918x = 12,326,123,896,164
5. Step 5: Solve for x
   x = 12,326,123,896,164/1,617,918
6. Step 6: Final answer
   x = 7,618,509.65