Finding the Third Proportional to 1,558,976 and 3,400,072

Step by Step Solution

1. Step 1: Write the proportion equation
   1,558,976 : 3,400,072 = 3,400,072 : x
2. Step 2: Convert to fraction form
   1,558,976/3,400,072 = 3,400,072/x
3. Step 3: Cross multiply
   1,558,976x = 3,400,072 × 3,400,072
4. Step 4: Simplify right side
   1,558,976x = 11,560,489,605,184
5. Step 5: Solve for x
   x = 11,560,489,605,184/1,558,976
6. Step 6: Final answer
   x = 7,415,437.83