Finding the Third Proportional to 303,061 and 454,591.50

Step by Step Solution

1. Step 1: Write the proportion equation
   303,061 : 454,591.50 = 454,591.50 : x
2. Step 2: Convert to fraction form
   303,061/454,591.50 = 454,591.50/x
3. Step 3: Cross multiply
   303,061x = 454,591.50 × 454,591.50
4. Step 4: Simplify right side
   303,061x = 206,653,431,872.25
5. Step 5: Solve for x
   x = 206,653,431,872.25/303,061
6. Step 6: Final answer
   x = 681,887.25