Finding the Third Proportional to 2,178 and 3,060

Step by Step Solution

1. Step 1: Write the proportion equation
   2,178 : 3,060 = 3,060 : x
2. Step 2: Convert to fraction form
   2,178/3,060 = 3,060/x
3. Step 3: Cross multiply
   2,178x = 3,060 × 3,060
4. Step 4: Simplify right side
   2,178x = 9,363,600
5. Step 5: Solve for x
   x = 9,363,600/2,178
6. Step 6: Final answer
   x = 4,299.17