Finding the Third Proportional to 49,309.50 and 80,112

Step by Step Solution

1. Step 1: Write the proportion equation
   49,309.50 : 80,112 = 80,112 : x
2. Step 2: Convert to fraction form
   49,309.50/80,112 = 80,112/x
3. Step 3: Cross multiply
   49,309.50x = 80,112 × 80,112
4. Step 4: Simplify right side
   49,309.50x = 6,417,932,544
5. Step 5: Solve for x
   x = 6,417,932,544/49,309.50
6. Step 6: Final answer
   x = 130,156.11