Finding the Third Proportional to 63,154.69 and 136,429.31

Step by Step Solution

1. Step 1: Write the proportion equation
   63,154.69 : 136,429.31 = 136,429.31 : x
2. Step 2: Convert to fraction form
   63,154.69/136,429.31 = 136,429.31/x
3. Step 3: Cross multiply
   63,154.69x = 136,429.31 × 136,429.31
4. Step 4: Simplify right side
   63,154.69x = 18,612,957,309.22
5. Step 5: Solve for x
   x = 18,612,957,309.22/63,154.69
6. Step 6: Final answer
   x = 294,720.12