Finding the Third Proportional to 155,453.50 and 340,058

Step by Step Solution

1. Step 1: Write the proportion equation
   155,453.50 : 340,058 = 340,058 : x
2. Step 2: Convert to fraction form
   155,453.50/340,058 = 340,058/x
3. Step 3: Cross multiply
   155,453.50x = 340,058 × 340,058
4. Step 4: Simplify right side
   155,453.50x = 115,639,443,364
5. Step 5: Solve for x
   x = 115,639,443,364/155,453.50
6. Step 6: Final answer
   x = 743,884.46