Finding the Third Proportional to 72,234 and 155,890.50

Step by Step Solution

1. Step 1: Write the proportion equation
   72,234 : 155,890.50 = 155,890.50 : x
2. Step 2: Convert to fraction form
   72,234/155,890.50 = 155,890.50/x
3. Step 3: Cross multiply
   72,234x = 155,890.50 × 155,890.50
4. Step 4: Simplify right side
   72,234x = 24,301,847,990.25
5. Step 5: Solve for x
   x = 24,301,847,990.25/72,234
6. Step 6: Final answer
   x = 336,432.26