Finding the Third Proportional to 13,230.21 and 28,280.07

Step by Step Solution

1. Step 1: Write the proportion equation
   13,230.21 : 28,280.07 = 28,280.07 : x
2. Step 2: Convert to fraction form
   13,230.21/28,280.07 = 28,280.07/x
3. Step 3: Cross multiply
   13,230.21x = 28,280.07 × 28,280.07
4. Step 4: Simplify right side
   13,230.21x = 799,762,597.82
5. Step 5: Solve for x
   x = 799,762,597.82/13,230.21
6. Step 6: Final answer
   x = 60,449.72