Finding the Third Proportional to 53,504.50 and 82,961.75

Step by Step Solution

1. Step 1: Write the proportion equation
   53,504.50 : 82,961.75 = 82,961.75 : x
2. Step 2: Convert to fraction form
   53,504.50/82,961.75 = 82,961.75/x
3. Step 3: Cross multiply
   53,504.50x = 82,961.75 × 82,961.75
4. Step 4: Simplify right side
   53,504.50x = 6,882,651,963.06
5. Step 5: Solve for x
   x = 6,882,651,963.06/53,504.50
6. Step 6: Final answer
   x = 128,636.88