Finding the Third Proportional to 78,048.56 and 111,529.41

Step by Step Solution

1. Step 1: Write the proportion equation
   78,048.56 : 111,529.41 = 111,529.41 : x
2. Step 2: Convert to fraction form
   78,048.56/111,529.41 = 111,529.41/x
3. Step 3: Cross multiply
   78,048.56x = 111,529.41 × 111,529.41
4. Step 4: Simplify right side
   78,048.56x = 12,438,808,458.48
5. Step 5: Solve for x
   x = 12,438,808,458.48/78,048.56
6. Step 6: Final answer
   x = 159,372.68