Finding the Third Proportional to 28,108 and 61,390

Step by Step Solution

1. Step 1: Write the proportion equation
   28,108 : 61,390 = 61,390 : x
2. Step 2: Convert to fraction form
   28,108/61,390 = 61,390/x
3. Step 3: Cross multiply
   28,108x = 61,390 × 61,390
4. Step 4: Simplify right side
   28,108x = 3,768,732,100
5. Step 5: Solve for x
   x = 3,768,732,100/28,108
6. Step 6: Final answer
   x = 134,080.41