Finding the Third Proportional to 27,129.94 and 42,003.56

Step by Step Solution

1. Step 1: Write the proportion equation
   27,129.94 : 42,003.56 = 42,003.56 : x
2. Step 2: Convert to fraction form
   27,129.94/42,003.56 = 42,003.56/x
3. Step 3: Cross multiply
   27,129.94x = 42,003.56 × 42,003.56
4. Step 4: Simplify right side
   27,129.94x = 1,764,299,262.69
5. Step 5: Solve for x
   x = 1,764,299,262.69/27,129.94
6. Step 6: Final answer
   x = 65,031.45