Finding the Third Proportional to 59,474.25 and 81,678.38

Step by Step Solution

1. Step 1: Write the proportion equation
   59,474.25 : 81,678.38 = 81,678.38 : x
2. Step 2: Convert to fraction form
   59,474.25/81,678.38 = 81,678.38/x
3. Step 3: Cross multiply
   59,474.25x = 81,678.38 × 81,678.38
4. Step 4: Simplify right side
   59,474.25x = 6,671,356,942.64
5. Step 5: Solve for x
   x = 6,671,356,942.64/59,474.25
6. Step 6: Final answer
   x = 112,172.19