Finding the Third Proportional to 13,218.75 and 28,804.50

Step by Step Solution

1. Step 1: Write the proportion equation
   13,218.75 : 28,804.50 = 28,804.50 : x
2. Step 2: Convert to fraction form
   13,218.75/28,804.50 = 28,804.50/x
3. Step 3: Cross multiply
   13,218.75x = 28,804.50 × 28,804.50
4. Step 4: Simplify right side
   13,218.75x = 829,699,220.25
5. Step 5: Solve for x
   x = 829,699,220.25/13,218.75
6. Step 6: Final answer
   x = 62,766.84