Finding the Third Proportional to 188,436 and 269,734.50

Step by Step Solution

1. Step 1: Write the proportion equation
   188,436 : 269,734.50 = 269,734.50 : x
2. Step 2: Convert to fraction form
   188,436/269,734.50 = 269,734.50/x
3. Step 3: Cross multiply
   188,436x = 269,734.50 × 269,734.50
4. Step 4: Simplify right side
   188,436x = 72,756,700,490.25
5. Step 5: Solve for x
   x = 72,756,700,490.25/188,436
6. Step 6: Final answer
   x = 386,108.28