Finding the Third Proportional to 1,605,964 and 3,566,216

Step by Step Solution

1. Step 1: Write the proportion equation
   1,605,964 : 3,566,216 = 3,566,216 : x
2. Step 2: Convert to fraction form
   1,605,964/3,566,216 = 3,566,216/x
3. Step 3: Cross multiply
   1,605,964x = 3,566,216 × 3,566,216
4. Step 4: Simplify right side
   1,605,964x = 12,717,896,558,656
5. Step 5: Solve for x
   x = 12,717,896,558,656/1,605,964
6. Step 6: Final answer
   x = 7,919,166.66