Finding the Third Proportional to 27,931.50 and 57,138.75

Step by Step Solution

1. Step 1: Write the proportion equation
   27,931.50 : 57,138.75 = 57,138.75 : x
2. Step 2: Convert to fraction form
   27,931.50/57,138.75 = 57,138.75/x
3. Step 3: Cross multiply
   27,931.50x = 57,138.75 × 57,138.75
4. Step 4: Simplify right side
   27,931.50x = 3,264,836,751.56
5. Step 5: Solve for x
   x = 3,264,836,751.56/27,931.50
6. Step 6: Final answer
   x = 116,887.27