Finding the Third Proportional to 13,421.50 and 28,575.50

Step by Step Solution

1. Step 1: Write the proportion equation
   13,421.50 : 28,575.50 = 28,575.50 : x
2. Step 2: Convert to fraction form
   13,421.50/28,575.50 = 28,575.50/x
3. Step 3: Cross multiply
   13,421.50x = 28,575.50 × 28,575.50
4. Step 4: Simplify right side
   13,421.50x = 816,559,200.25
5. Step 5: Solve for x
   x = 816,559,200.25/13,421.50
6. Step 6: Final answer
   x = 60,839.64