Finding the Third Proportional to 320,500.50 and 683,904

Step by Step Solution

1. Step 1: Write the proportion equation
   320,500.50 : 683,904 = 683,904 : x
2. Step 2: Convert to fraction form
   320,500.50/683,904 = 683,904/x
3. Step 3: Cross multiply
   320,500.50x = 683,904 × 683,904
4. Step 4: Simplify right side
   320,500.50x = 467,724,681,216
5. Step 5: Solve for x
   x = 467,724,681,216/320,500.50
6. Step 6: Final answer
   x = 1,459,357.10