Finding the Third Proportional to 220,453 and 340,732.50

Step by Step Solution

1. Step 1: Write the proportion equation
   220,453 : 340,732.50 = 340,732.50 : x
2. Step 2: Convert to fraction form
   220,453/340,732.50 = 340,732.50/x
3. Step 3: Cross multiply
   220,453x = 340,732.50 × 340,732.50
4. Step 4: Simplify right side
   220,453x = 116,098,636,556.25
5. Step 5: Solve for x
   x = 116,098,636,556.25/220,453
6. Step 6: Final answer
   x = 526,636.68