Finding the Third Proportional to 145,419 and 307,604.50

Step by Step Solution

1. Step 1: Write the proportion equation
   145,419 : 307,604.50 = 307,604.50 : x
2. Step 2: Convert to fraction form
   145,419/307,604.50 = 307,604.50/x
3. Step 3: Cross multiply
   145,419x = 307,604.50 × 307,604.50
4. Step 4: Simplify right side
   145,419x = 94,620,528,420.25
5. Step 5: Solve for x
   x = 94,620,528,420.25/145,419
6. Step 6: Final answer
   x = 650,675.14