Finding the Third Proportional to 196,386 and 431,004

Step by Step Solution

1. Step 1: Write the proportion equation
   196,386 : 431,004 = 431,004 : x
2. Step 2: Convert to fraction form
   196,386/431,004 = 431,004/x
3. Step 3: Cross multiply
   196,386x = 431,004 × 431,004
4. Step 4: Simplify right side
   196,386x = 185,764,448,016
5. Step 5: Solve for x
   x = 185,764,448,016/196,386
6. Step 6: Final answer
   x = 945,914.92