Finding the Third Proportional to 159,042 and 243,658.50

Step by Step Solution

1. Step 1: Write the proportion equation
   159,042 : 243,658.50 = 243,658.50 : x
2. Step 2: Convert to fraction form
   159,042/243,658.50 = 243,658.50/x
3. Step 3: Cross multiply
   159,042x = 243,658.50 × 243,658.50
4. Step 4: Simplify right side
   159,042x = 59,369,464,622.25
5. Step 5: Solve for x
   x = 59,369,464,622.25/159,042
6. Step 6: Final answer
   x = 373,294.25