Finding the Third Proportional to 1,612,278 and 3,519,288

Step by Step Solution

1. Step 1: Write the proportion equation
   1,612,278 : 3,519,288 = 3,519,288 : x
2. Step 2: Convert to fraction form
   1,612,278/3,519,288 = 3,519,288/x
3. Step 3: Cross multiply
   1,612,278x = 3,519,288 × 3,519,288
4. Step 4: Simplify right side
   1,612,278x = 12,385,388,026,944
5. Step 5: Solve for x
   x = 12,385,388,026,944/1,612,278
6. Step 6: Final answer
   x = 7,681,918.40