Finding the Third Proportional to 31,243 and 46,905

Step by Step Solution

1. Step 1: Write the proportion equation
   31,243 : 46,905 = 46,905 : x
2. Step 2: Convert to fraction form
   31,243/46,905 = 46,905/x
3. Step 3: Cross multiply
   31,243x = 46,905 × 46,905
4. Step 4: Simplify right side
   31,243x = 2,200,079,025
5. Step 5: Solve for x
   x = 2,200,079,025/31,243
6. Step 6: Final answer
   x = 70,418.30