Finding the Third Proportional to 5,116.76 and 7,811.83

Step by Step Solution

1. Step 1: Write the proportion equation
   5,116.76 : 7,811.83 = 7,811.83 : x
2. Step 2: Convert to fraction form
   5,116.76/7,811.83 = 7,811.83/x
3. Step 3: Cross multiply
   5,116.76x = 7,811.83 × 7,811.83
4. Step 4: Simplify right side
   5,116.76x = 61,024,734.94
5. Step 5: Solve for x
   x = 61,024,734.94/5,116.76
6. Step 6: Final answer
   x = 11,926.43