Finding the Third Proportional to 349,740 and 443,650

Step by Step Solution

1. Step 1: Write the proportion equation
   349,740 : 443,650 = 443,650 : x
2. Step 2: Convert to fraction form
   349,740/443,650 = 443,650/x
3. Step 3: Cross multiply
   349,740x = 443,650 × 443,650
4. Step 4: Simplify right side
   349,740x = 196,825,322,500
5. Step 5: Solve for x
   x = 196,825,322,500/349,740
6. Step 6: Final answer
   x = 562,776.13