Finding the Third Proportional to 82,928 and 124,990

Step by Step Solution

1. Step 1: Write the proportion equation
   82,928 : 124,990 = 124,990 : x
2. Step 2: Convert to fraction form
   82,928/124,990 = 124,990/x
3. Step 3: Cross multiply
   82,928x = 124,990 × 124,990
4. Step 4: Simplify right side
   82,928x = 15,622,500,100
5. Step 5: Solve for x
   x = 15,622,500,100/82,928
6. Step 6: Final answer
   x = 188,386.31