Finding the Third Proportional to 242,988 and 342,028.50

Step by Step Solution

1. Step 1: Write the proportion equation
   242,988 : 342,028.50 = 342,028.50 : x
2. Step 2: Convert to fraction form
   242,988/342,028.50 = 342,028.50/x
3. Step 3: Cross multiply
   242,988x = 342,028.50 × 342,028.50
4. Step 4: Simplify right side
   242,988x = 116,983,494,812.25
5. Step 5: Solve for x
   x = 116,983,494,812.25/242,988
6. Step 6: Final answer
   x = 481,437.33