Finding the Third Proportional to 27,510 and 42,705

Step by Step Solution

1. Step 1: Write the proportion equation
   27,510 : 42,705 = 42,705 : x
2. Step 2: Convert to fraction form
   27,510/42,705 = 42,705/x
3. Step 3: Cross multiply
   27,510x = 42,705 × 42,705
4. Step 4: Simplify right side
   27,510x = 1,823,717,025
5. Step 5: Solve for x
   x = 1,823,717,025/27,510
6. Step 6: Final answer
   x = 66,292.88