Finding the Third Proportional to 28,188 and 62,208

Step by Step Solution

1. Step 1: Write the proportion equation
   28,188 : 62,208 = 62,208 : x
2. Step 2: Convert to fraction form
   28,188/62,208 = 62,208/x
3. Step 3: Cross multiply
   28,188x = 62,208 × 62,208
4. Step 4: Simplify right side
   28,188x = 3,869,835,264
5. Step 5: Solve for x
   x = 3,869,835,264/28,188
6. Step 6: Final answer
   x = 137,286.62