Finding the Third Proportional to 95,510 and 215,645

Step by Step Solution

1. Step 1: Write the proportion equation
   95,510 : 215,645 = 215,645 : x
2. Step 2: Convert to fraction form
   95,510/215,645 = 215,645/x
3. Step 3: Cross multiply
   95,510x = 215,645 × 215,645
4. Step 4: Simplify right side
   95,510x = 46,502,766,025
5. Step 5: Solve for x
   x = 46,502,766,025/95,510
6. Step 6: Final answer
   x = 486,888.98