Finding the Third Proportional to 28,240 and 58,820

Step by Step Solution

1. Step 1: Write the proportion equation
   28,240 : 58,820 = 58,820 : x
2. Step 2: Convert to fraction form
   28,240/58,820 = 58,820/x
3. Step 3: Cross multiply
   28,240x = 58,820 × 58,820
4. Step 4: Simplify right side
   28,240x = 3,459,792,400
5. Step 5: Solve for x
   x = 3,459,792,400/28,240
6. Step 6: Final answer
   x = 122,513.90