Finding the Third Proportional to 210,249 and 302,224.50

Step by Step Solution

1. Step 1: Write the proportion equation
   210,249 : 302,224.50 = 302,224.50 : x
2. Step 2: Convert to fraction form
   210,249/302,224.50 = 302,224.50/x
3. Step 3: Cross multiply
   210,249x = 302,224.50 × 302,224.50
4. Step 4: Simplify right side
   210,249x = 91,339,648,400.25
5. Step 5: Solve for x
   x = 91,339,648,400.25/210,249
6. Step 6: Final answer
   x = 434,435.59