Finding the Third Proportional to 188,249 and 282,790.50

Step by Step Solution

1. Step 1: Write the proportion equation
   188,249 : 282,790.50 = 282,790.50 : x
2. Step 2: Convert to fraction form
   188,249/282,790.50 = 282,790.50/x
3. Step 3: Cross multiply
   188,249x = 282,790.50 × 282,790.50
4. Step 4: Simplify right side
   188,249x = 79,970,466,890.25
5. Step 5: Solve for x
   x = 79,970,466,890.25/188,249
6. Step 6: Final answer
   x = 424,812.17