Finding the Third Proportional to 464,908.50 and 681,435

Step by Step Solution

1. Step 1: Write the proportion equation
   464,908.50 : 681,435 = 681,435 : x
2. Step 2: Convert to fraction form
   464,908.50/681,435 = 681,435/x
3. Step 3: Cross multiply
   464,908.50x = 681,435 × 681,435
4. Step 4: Simplify right side
   464,908.50x = 464,353,659,225
5. Step 5: Solve for x
   x = 464,353,659,225/464,908.50
6. Step 6: Final answer
   x = 998,806.56