Finding the Third Proportional to 242,434 and 509,991.50

Step by Step Solution

1. Step 1: Write the proportion equation
   242,434 : 509,991.50 = 509,991.50 : x
2. Step 2: Convert to fraction form
   242,434/509,991.50 = 509,991.50/x
3. Step 3: Cross multiply
   242,434x = 509,991.50 × 509,991.50
4. Step 4: Simplify right side
   242,434x = 260,091,330,072.25
5. Step 5: Solve for x
   x = 260,091,330,072.25/242,434
6. Step 6: Final answer
   x = 1,072,833.55