Finding the Third Proportional to 28,224 and 61,320

Step by Step Solution

1. Step 1: Write the proportion equation
   28,224 : 61,320 = 61,320 : x
2. Step 2: Convert to fraction form
   28,224/61,320 = 61,320/x
3. Step 3: Cross multiply
   28,224x = 61,320 × 61,320
4. Step 4: Simplify right side
   28,224x = 3,760,142,400
5. Step 5: Solve for x
   x = 3,760,142,400/28,224
6. Step 6: Final answer
   x = 133,225