Finding the Third Proportional to 28,040 and 60,320

Step by Step Solution

1. Step 1: Write the proportion equation
   28,040 : 60,320 = 60,320 : x
2. Step 2: Convert to fraction form
   28,040/60,320 = 60,320/x
3. Step 3: Cross multiply
   28,040x = 60,320 × 60,320
4. Step 4: Simplify right side
   28,040x = 3,638,502,400
5. Step 5: Solve for x
   x = 3,638,502,400/28,040
6. Step 6: Final answer
   x = 129,761.14