Finding the Third Proportional to 303,318 and 436,933.50

Step by Step Solution

1. Step 1: Write the proportion equation
   303,318 : 436,933.50 = 436,933.50 : x
2. Step 2: Convert to fraction form
   303,318/436,933.50 = 436,933.50/x
3. Step 3: Cross multiply
   303,318x = 436,933.50 × 436,933.50
4. Step 4: Simplify right side
   303,318x = 190,910,883,422.25
5. Step 5: Solve for x
   x = 190,910,883,422.25/303,318
6. Step 6: Final answer
   x = 629,408.36