Finding the Third Proportional to 303,564 and 438,562.50

Step by Step Solution

1. Step 1: Write the proportion equation
   303,564 : 438,562.50 = 438,562.50 : x
2. Step 2: Convert to fraction form
   303,564/438,562.50 = 438,562.50/x
3. Step 3: Cross multiply
   303,564x = 438,562.50 × 438,562.50
4. Step 4: Simplify right side
   303,564x = 192,337,066,406.25
5. Step 5: Solve for x
   x = 192,337,066,406.25/303,564
6. Step 6: Final answer
   x = 633,596.43