Finding the Third Proportional to 1,585,178 and 3,428,908

Step by Step Solution

1. Step 1: Write the proportion equation
   1,585,178 : 3,428,908 = 3,428,908 : x
2. Step 2: Convert to fraction form
   1,585,178/3,428,908 = 3,428,908/x
3. Step 3: Cross multiply
   1,585,178x = 3,428,908 × 3,428,908
4. Step 4: Simplify right side
   1,585,178x = 11,757,410,072,464
5. Step 5: Solve for x
   x = 11,757,410,072,464/1,585,178
6. Step 6: Final answer
   x = 7,417,091.38