Finding the Third Proportional to 13,220 and 28,300

Step by Step Solution

1. Step 1: Write the proportion equation
   13,220 : 28,300 = 28,300 : x
2. Step 2: Convert to fraction form
   13,220/28,300 = 28,300/x
3. Step 3: Cross multiply
   13,220x = 28,300 × 28,300
4. Step 4: Simplify right side
   13,220x = 800,890,000
5. Step 5: Solve for x
   x = 800,890,000/13,220
6. Step 6: Final answer
   x = 60,581.69