Finding the Third Proportional to 28,298 and 58,920

Step by Step Solution

1. Step 1: Write the proportion equation
   28,298 : 58,920 = 58,920 : x
2. Step 2: Convert to fraction form
   28,298/58,920 = 58,920/x
3. Step 3: Cross multiply
   28,298x = 58,920 × 58,920
4. Step 4: Simplify right side
   28,298x = 3,471,566,400
5. Step 5: Solve for x
   x = 3,471,566,400/28,298
6. Step 6: Final answer
   x = 122,678.86