Finding the Third Proportional to 56,780.37 and 122,965.59

Step by Step Solution

1. Step 1: Write the proportion equation
   56,780.37 : 122,965.59 = 122,965.59 : x
2. Step 2: Convert to fraction form
   56,780.37/122,965.59 = 122,965.59/x
3. Step 3: Cross multiply
   56,780.37x = 122,965.59 × 122,965.59
4. Step 4: Simplify right side
   56,780.37x = 15,120,537,246.29
5. Step 5: Solve for x
   x = 15,120,537,246.29/56,780.37
6. Step 6: Final answer
   x = 266,298.69