Finding the Third Proportional to 56,404.69 and 125,417.25

Step by Step Solution

1. Step 1: Write the proportion equation
   56,404.69 : 125,417.25 = 125,417.25 : x
2. Step 2: Convert to fraction form
   56,404.69/125,417.25 = 125,417.25/x
3. Step 3: Cross multiply
   56,404.69x = 125,417.25 × 125,417.25
4. Step 4: Simplify right side
   56,404.69x = 15,729,486,597.56
5. Step 5: Solve for x
   x = 15,729,486,597.56/56,404.69
6. Step 6: Final answer
   x = 278,868.43