Finding the Third Proportional to 142,580.25 and 303,507

Step by Step Solution

1. Step 1: Write the proportion equation
   142,580.25 : 303,507 = 303,507 : x
2. Step 2: Convert to fraction form
   142,580.25/303,507 = 303,507/x
3. Step 3: Cross multiply
   142,580.25x = 303,507 × 303,507
4. Step 4: Simplify right side
   142,580.25x = 92,116,499,049
5. Step 5: Solve for x
   x = 92,116,499,049/142,580.25
6. Step 6: Final answer
   x = 646,067.73