Finding the Third Proportional to 155,449.50 and 228,072

Step by Step Solution

1. Step 1: Write the proportion equation
   155,449.50 : 228,072 = 228,072 : x
2. Step 2: Convert to fraction form
   155,449.50/228,072 = 228,072/x
3. Step 3: Cross multiply
   155,449.50x = 228,072 × 228,072
4. Step 4: Simplify right side
   155,449.50x = 52,016,837,184
5. Step 5: Solve for x
   x = 52,016,837,184/155,449.50
6. Step 6: Final answer
   x = 334,622.09