Finding the Third Proportional to 113,136 and 223,417.50

Step by Step Solution

1. Step 1: Write the proportion equation
   113,136 : 223,417.50 = 223,417.50 : x
2. Step 2: Convert to fraction form
   113,136/223,417.50 = 223,417.50/x
3. Step 3: Cross multiply
   113,136x = 223,417.50 × 223,417.50
4. Step 4: Simplify right side
   113,136x = 49,915,379,306.25
5. Step 5: Solve for x
   x = 49,915,379,306.25/113,136
6. Step 6: Final answer
   x = 441,198.02