Finding the Third Proportional to 7,111 and 16,607.50

Step by Step Solution

1. Step 1: Write the proportion equation
   7,111 : 16,607.50 = 16,607.50 : x
2. Step 2: Convert to fraction form
   7,111/16,607.50 = 16,607.50/x
3. Step 3: Cross multiply
   7,111x = 16,607.50 × 16,607.50
4. Step 4: Simplify right side
   7,111x = 275,809,056.25
5. Step 5: Solve for x
   x = 275,809,056.25/7,111
6. Step 6: Final answer
   x = 38,786.25