Finding the Third Proportional to 349,989.75 and 541,386

Step by Step Solution

1. Step 1: Write the proportion equation
   349,989.75 : 541,386 = 541,386 : x
2. Step 2: Convert to fraction form
   349,989.75/541,386 = 541,386/x
3. Step 3: Cross multiply
   349,989.75x = 541,386 × 541,386
4. Step 4: Simplify right side
   349,989.75x = 293,098,800,996
5. Step 5: Solve for x
   x = 293,098,800,996/349,989.75
6. Step 6: Final answer
   x = 837,449.67