Finding the Third Proportional to 303,606 and 445,561.50

Step by Step Solution

1. Step 1: Write the proportion equation
   303,606 : 445,561.50 = 445,561.50 : x
2. Step 2: Convert to fraction form
   303,606/445,561.50 = 445,561.50/x
3. Step 3: Cross multiply
   303,606x = 445,561.50 × 445,561.50
4. Step 4: Simplify right side
   303,606x = 198,525,050,282.25
5. Step 5: Solve for x
   x = 198,525,050,282.25/303,606
6. Step 6: Final answer
   x = 653,890.40