Finding the Third Proportional to 149,890.50 and 313,632

Step by Step Solution

1. Step 1: Write the proportion equation
   149,890.50 : 313,632 = 313,632 : x
2. Step 2: Convert to fraction form
   149,890.50/313,632 = 313,632/x
3. Step 3: Cross multiply
   149,890.50x = 313,632 × 313,632
4. Step 4: Simplify right side
   149,890.50x = 98,365,031,424
5. Step 5: Solve for x
   x = 98,365,031,424/149,890.50
6. Step 6: Final answer
   x = 656,245.94