Finding the Third Proportional to 6,113.81 and 13,120.88

Step by Step Solution

1. Step 1: Write the proportion equation
   6,113.81 : 13,120.88 = 13,120.88 : x
2. Step 2: Convert to fraction form
   6,113.81/13,120.88 = 13,120.88/x
3. Step 3: Cross multiply
   6,113.81x = 13,120.88 × 13,120.88
4. Step 4: Simplify right side
   6,113.81x = 172,157,360.77
5. Step 5: Solve for x
   x = 172,157,360.77/6,113.81
6. Step 6: Final answer
   x = 28,158.76