Finding the Third Proportional to 118,868.72 and 256,462.59

Step by Step Solution

1. Step 1: Write the proportion equation
   118,868.72 : 256,462.59 = 256,462.59 : x
2. Step 2: Convert to fraction form
   118,868.72/256,462.59 = 256,462.59/x
3. Step 3: Cross multiply
   118,868.72x = 256,462.59 × 256,462.59
4. Step 4: Simplify right side
   118,868.72x = 65,773,061,992.98
5. Step 5: Solve for x
   x = 65,773,061,992.98/118,868.72
6. Step 6: Final answer
   x = 553,325.24