Finding the Third Proportional to 133,208.50 and 290,825

Step by Step Solution

1. Step 1: Write the proportion equation
   133,208.50 : 290,825 = 290,825 : x
2. Step 2: Convert to fraction form
   133,208.50/290,825 = 290,825/x
3. Step 3: Cross multiply
   133,208.50x = 290,825 × 290,825
4. Step 4: Simplify right side
   133,208.50x = 84,579,180,625
5. Step 5: Solve for x
   x = 84,579,180,625/133,208.50
6. Step 6: Final answer
   x = 634,938.32