Finding the Third Proportional to 53,503.50 and 82,800.75

Step by Step Solution

1. Step 1: Write the proportion equation
   53,503.50 : 82,800.75 = 82,800.75 : x
2. Step 2: Convert to fraction form
   53,503.50/82,800.75 = 82,800.75/x
3. Step 3: Cross multiply
   53,503.50x = 82,800.75 × 82,800.75
4. Step 4: Simplify right side
   53,503.50x = 6,855,964,200.56
5. Step 5: Solve for x
   x = 6,855,964,200.56/53,503.50
6. Step 6: Final answer
   x = 128,140.48