Finding the Third Proportional to 3,790.88 and 7,770.56

Step by Step Solution

1. Step 1: Write the proportion equation
   3,790.88 : 7,770.56 = 7,770.56 : x
2. Step 2: Convert to fraction form
   3,790.88/7,770.56 = 7,770.56/x
3. Step 3: Cross multiply
   3,790.88x = 7,770.56 × 7,770.56
4. Step 4: Simplify right side
   3,790.88x = 60,381,641.57
5. Step 5: Solve for x
   x = 60,381,641.57/3,790.88
6. Step 6: Final answer
   x = 15,928.15