Finding the Third Proportional to 12,904.31 and 27,912.94

Step by Step Solution

1. Step 1: Write the proportion equation
   12,904.31 : 27,912.94 = 27,912.94 : x
2. Step 2: Convert to fraction form
   12,904.31/27,912.94 = 27,912.94/x
3. Step 3: Cross multiply
   12,904.31x = 27,912.94 × 27,912.94
4. Step 4: Simplify right side
   12,904.31x = 779,132,079.88
5. Step 5: Solve for x
   x = 779,132,079.88/12,904.31
6. Step 6: Final answer
   x = 60,377.65