Finding the Third Proportional to 124,699.50 and 270,729

Step by Step Solution

1. Step 1: Write the proportion equation
   124,699.50 : 270,729 = 270,729 : x
2. Step 2: Convert to fraction form
   124,699.50/270,729 = 270,729/x
3. Step 3: Cross multiply
   124,699.50x = 270,729 × 270,729
4. Step 4: Simplify right side
   124,699.50x = 73,294,191,441
5. Step 5: Solve for x
   x = 73,294,191,441/124,699.50
6. Step 6: Final answer
   x = 587,766.52