Finding the Third Proportional to 303,622.50 and 445,590

Step by Step Solution

1. Step 1: Write the proportion equation
   303,622.50 : 445,590 = 445,590 : x
2. Step 2: Convert to fraction form
   303,622.50/445,590 = 445,590/x
3. Step 3: Cross multiply
   303,622.50x = 445,590 × 445,590
4. Step 4: Simplify right side
   303,622.50x = 198,550,448,100
5. Step 5: Solve for x
   x = 198,550,448,100/303,622.50
6. Step 6: Final answer
   x = 653,938.52