Finding the Third Proportional to 55,429.31 and 121,588.38

Step by Step Solution

1. Step 1: Write the proportion equation
   55,429.31 : 121,588.38 = 121,588.38 : x
2. Step 2: Convert to fraction form
   55,429.31/121,588.38 = 121,588.38/x
3. Step 3: Cross multiply
   55,429.31x = 121,588.38 × 121,588.38
4. Step 4: Simplify right side
   55,429.31x = 14,783,734,834.96
5. Step 5: Solve for x
   x = 14,783,734,834.96/55,429.31
6. Step 6: Final answer
   x = 266,713.30