Finding the Third Proportional to 213,279 and 493,751.50

Step by Step Solution

1. Step 1: Write the proportion equation
   213,279 : 493,751.50 = 493,751.50 : x
2. Step 2: Convert to fraction form
   213,279/493,751.50 = 493,751.50/x
3. Step 3: Cross multiply
   213,279x = 493,751.50 × 493,751.50
4. Step 4: Simplify right side
   213,279x = 243,790,543,752.25
5. Step 5: Solve for x
   x = 243,790,543,752.25/213,279
6. Step 6: Final answer
   x = 1,143,059.30