Finding the Third Proportional to 190,424 and 445,034

Step by Step Solution

1. Step 1: Write the proportion equation
   190,424 : 445,034 = 445,034 : x
2. Step 2: Convert to fraction form
   190,424/445,034 = 445,034/x
3. Step 3: Cross multiply
   190,424x = 445,034 × 445,034
4. Step 4: Simplify right side
   190,424x = 198,055,261,156
5. Step 5: Solve for x
   x = 198,055,261,156/190,424
6. Step 6: Final answer
   x = 1,040,075.10