Finding the Third Proportional to 123,993 and 270,129.50

Step by Step Solution

1. Step 1: Write the proportion equation
   123,993 : 270,129.50 = 270,129.50 : x
2. Step 2: Convert to fraction form
   123,993/270,129.50 = 270,129.50/x
3. Step 3: Cross multiply
   123,993x = 270,129.50 × 270,129.50
4. Step 4: Simplify right side
   123,993x = 72,969,946,770.25
5. Step 5: Solve for x
   x = 72,969,946,770.25/123,993
6. Step 6: Final answer
   x = 588,500.53