Finding the Third Proportional to 12,228 and 13,572

Step by Step Solution

1. Step 1: Write the proportion equation
   12,228 : 13,572 = 13,572 : x
2. Step 2: Convert to fraction form
   12,228/13,572 = 13,572/x
3. Step 3: Cross multiply
   12,228x = 13,572 × 13,572
4. Step 4: Simplify right side
   12,228x = 184,199,184
5. Step 5: Solve for x
   x = 184,199,184/12,228
6. Step 6: Final answer
   x = 15,063.72