Finding the Third Proportional to 303,556.50 and 438,552

Step by Step Solution

1. Step 1: Write the proportion equation
   303,556.50 : 438,552 = 438,552 : x
2. Step 2: Convert to fraction form
   303,556.50/438,552 = 438,552/x
3. Step 3: Cross multiply
   303,556.50x = 438,552 × 438,552
4. Step 4: Simplify right side
   303,556.50x = 192,327,856,704
5. Step 5: Solve for x
   x = 192,327,856,704/303,556.50
6. Step 6: Final answer
   x = 633,581.74