Finding the Third Proportional to 111,126.94 and 171,907.31

Step by Step Solution

1. Step 1: Write the proportion equation
   111,126.94 : 171,907.31 = 171,907.31 : x
2. Step 2: Convert to fraction form
   111,126.94/171,907.31 = 171,907.31/x
3. Step 3: Cross multiply
   111,126.94x = 171,907.31 × 171,907.31
4. Step 4: Simplify right side
   111,126.94x = 29,552,124,090.97
5. Step 5: Solve for x
   x = 29,552,124,090.97/111,126.94
6. Step 6: Final answer
   x = 265,931.24