Finding the Third Proportional to 25,780.50 and 55,770.75

Step by Step Solution

1. Step 1: Write the proportion equation
   25,780.50 : 55,770.75 = 55,770.75 : x
2. Step 2: Convert to fraction form
   25,780.50/55,770.75 = 55,770.75/x
3. Step 3: Cross multiply
   25,780.50x = 55,770.75 × 55,770.75
4. Step 4: Simplify right side
   25,780.50x = 3,110,376,555.56
5. Step 5: Solve for x
   x = 3,110,376,555.56/25,780.50
6. Step 6: Final answer
   x = 120,648.42