Finding the Third Proportional to 196,681.50 and 431,271

Step by Step Solution

1. Step 1: Write the proportion equation
   196,681.50 : 431,271 = 431,271 : x
2. Step 2: Convert to fraction form
   196,681.50/431,271 = 431,271/x
3. Step 3: Cross multiply
   196,681.50x = 431,271 × 431,271
4. Step 4: Simplify right side
   196,681.50x = 185,994,675,441
5. Step 5: Solve for x
   x = 185,994,675,441/196,681.50
6. Step 6: Final answer
   x = 945,664.31