Finding the Third Proportional to 236,157 and 274,543.50

Step by Step Solution

1. Step 1: Write the proportion equation
   236,157 : 274,543.50 = 274,543.50 : x
2. Step 2: Convert to fraction form
   236,157/274,543.50 = 274,543.50/x
3. Step 3: Cross multiply
   236,157x = 274,543.50 × 274,543.50
4. Step 4: Simplify right side
   236,157x = 75,374,133,392.25
5. Step 5: Solve for x
   x = 75,374,133,392.25/236,157
6. Step 6: Final answer
   x = 319,169.59