Finding the Third Proportional to 159,040.50 and 243,655.50

Step by Step Solution

1. Step 1: Write the proportion equation
   159,040.50 : 243,655.50 = 243,655.50 : x
2. Step 2: Convert to fraction form
   159,040.50/243,655.50 = 243,655.50/x
3. Step 3: Cross multiply
   159,040.50x = 243,655.50 × 243,655.50
4. Step 4: Simplify right side
   159,040.50x = 59,368,002,680.25
5. Step 5: Solve for x
   x = 59,368,002,680.25/159,040.50
6. Step 6: Final answer
   x = 373,288.58