Finding the Third Proportional to 124,908 and 262,870

Step by Step Solution

1. Step 1: Write the proportion equation
   124,908 : 262,870 = 262,870 : x
2. Step 2: Convert to fraction form
   124,908/262,870 = 262,870/x
3. Step 3: Cross multiply
   124,908x = 262,870 × 262,870
4. Step 4: Simplify right side
   124,908x = 69,100,636,900
5. Step 5: Solve for x
   x = 69,100,636,900/124,908
6. Step 6: Final answer
   x = 553,212.26