Finding the Third Proportional to 53,898.75 and 82,731.38

Step by Step Solution

1. Step 1: Write the proportion equation
   53,898.75 : 82,731.38 = 82,731.38 : x
2. Step 2: Convert to fraction form
   53,898.75/82,731.38 = 82,731.38/x
3. Step 3: Cross multiply
   53,898.75x = 82,731.38 × 82,731.38
4. Step 4: Simplify right side
   53,898.75x = 6,844,480,409.39
5. Step 5: Solve for x
   x = 6,844,480,409.39/53,898.75
6. Step 6: Final answer
   x = 126,987.74