Finding the Third Proportional to 56,540 and 76,785

Step by Step Solution

1. Step 1: Write the proportion equation
   56,540 : 76,785 = 76,785 : x
2. Step 2: Convert to fraction form
   56,540/76,785 = 76,785/x
3. Step 3: Cross multiply
   56,540x = 76,785 × 76,785
4. Step 4: Simplify right side
   56,540x = 5,895,936,225
5. Step 5: Solve for x
   x = 5,895,936,225/56,540
6. Step 6: Final answer
   x = 104,279.03