Finding the Third Proportional to 123,039 and 302,535

Step by Step Solution

1. Step 1: Write the proportion equation
   123,039 : 302,535 = 302,535 : x
2. Step 2: Convert to fraction form
   123,039/302,535 = 302,535/x
3. Step 3: Cross multiply
   123,039x = 302,535 × 302,535
4. Step 4: Simplify right side
   123,039x = 91,527,426,225
5. Step 5: Solve for x
   x = 91,527,426,225/123,039
6. Step 6: Final answer
   x = 743,889.55