Finding the Third Proportional to 39,460 and 55,504

Step by Step Solution

1. Step 1: Write the proportion equation
   39,460 : 55,504 = 55,504 : x
2. Step 2: Convert to fraction form
   39,460/55,504 = 55,504/x
3. Step 3: Cross multiply
   39,460x = 55,504 × 55,504
4. Step 4: Simplify right side
   39,460x = 3,080,694,016
5. Step 5: Solve for x
   x = 3,080,694,016/39,460
6. Step 6: Final answer
   x = 78,071.31