Finding the Third Proportional to 196,384 and 431,000

Step by Step Solution

1. Step 1: Write the proportion equation
   196,384 : 431,000 = 431,000 : x
2. Step 2: Convert to fraction form
   196,384/431,000 = 431,000/x
3. Step 3: Cross multiply
   196,384x = 431,000 × 431,000
4. Step 4: Simplify right side
   196,384x = 185,761,000,000
5. Step 5: Solve for x
   x = 185,761,000,000/196,384
6. Step 6: Final answer
   x = 945,907.00