Finding the Third Proportional to 27,991.50 and 42,257.25

Step by Step Solution

1. Step 1: Write the proportion equation
   27,991.50 : 42,257.25 = 42,257.25 : x
2. Step 2: Convert to fraction form
   27,991.50/42,257.25 = 42,257.25/x
3. Step 3: Cross multiply
   27,991.50x = 42,257.25 × 42,257.25
4. Step 4: Simplify right side
   27,991.50x = 1,785,675,177.56
5. Step 5: Solve for x
   x = 1,785,675,177.56/27,991.50
6. Step 6: Final answer
   x = 63,793.48