Finding the Third Proportional to 14,242.50 and 31,170.75

Step by Step Solution

1. Step 1: Write the proportion equation
   14,242.50 : 31,170.75 = 31,170.75 : x
2. Step 2: Convert to fraction form
   14,242.50/31,170.75 = 31,170.75/x
3. Step 3: Cross multiply
   14,242.50x = 31,170.75 × 31,170.75
4. Step 4: Simplify right side
   14,242.50x = 971,615,655.56
5. Step 5: Solve for x
   x = 971,615,655.56/14,242.50
6. Step 6: Final answer
   x = 68,219.46