Finding the Third Proportional to 303,546 and 438,535.50

Step by Step Solution

1. Step 1: Write the proportion equation
   303,546 : 438,535.50 = 438,535.50 : x
2. Step 2: Convert to fraction form
   303,546/438,535.50 = 438,535.50/x
3. Step 3: Cross multiply
   303,546x = 438,535.50 × 438,535.50
4. Step 4: Simplify right side
   303,546x = 192,313,384,760.25
5. Step 5: Solve for x
   x = 192,313,384,760.25/303,546
6. Step 6: Final answer
   x = 633,555.98