Finding the Third Proportional to 52,496.25 and 80,688.75

Step by Step Solution

1. Step 1: Write the proportion equation
   52,496.25 : 80,688.75 = 80,688.75 : x
2. Step 2: Convert to fraction form
   52,496.25/80,688.75 = 80,688.75/x
3. Step 3: Cross multiply
   52,496.25x = 80,688.75 × 80,688.75
4. Step 4: Simplify right side
   52,496.25x = 6,510,674,376.56
5. Step 5: Solve for x
   x = 6,510,674,376.56/52,496.25
6. Step 6: Final answer
   x = 124,021.70