Finding the Third Proportional to 13,517.63 and 31,113.75

Step by Step Solution

1. Step 1: Write the proportion equation
   13,517.63 : 31,113.75 = 31,113.75 : x
2. Step 2: Convert to fraction form
   13,517.63/31,113.75 = 31,113.75/x
3. Step 3: Cross multiply
   13,517.63x = 31,113.75 × 31,113.75
4. Step 4: Simplify right side
   13,517.63x = 968,065,439.06
5. Step 5: Solve for x
   x = 968,065,439.06/13,517.63
6. Step 6: Final answer
   x = 71,615.05