Finding the Third Proportional to 171,235 and 268,607.50

Step by Step Solution

1. Step 1: Write the proportion equation
   171,235 : 268,607.50 = 268,607.50 : x
2. Step 2: Convert to fraction form
   171,235/268,607.50 = 268,607.50/x
3. Step 3: Cross multiply
   171,235x = 268,607.50 × 268,607.50
4. Step 4: Simplify right side
   171,235x = 72,149,989,056.25
5. Step 5: Solve for x
   x = 72,149,989,056.25/171,235
6. Step 6: Final answer
   x = 421,350.71