Finding the Third Proportional to 125,643.50 and 270,970

Step by Step Solution

1. Step 1: Write the proportion equation
   125,643.50 : 270,970 = 270,970 : x
2. Step 2: Convert to fraction form
   125,643.50/270,970 = 270,970/x
3. Step 3: Cross multiply
   125,643.50x = 270,970 × 270,970
4. Step 4: Simplify right side
   125,643.50x = 73,424,740,900
5. Step 5: Solve for x
   x = 73,424,740,900/125,643.50
6. Step 6: Final answer
   x = 584,389.49