Finding the Third Proportional to 75,429.75 and 111,839.06

Step by Step Solution

1. Step 1: Write the proportion equation
   75,429.75 : 111,839.06 = 111,839.06 : x
2. Step 2: Convert to fraction form
   75,429.75/111,839.06 = 111,839.06/x
3. Step 3: Cross multiply
   75,429.75x = 111,839.06 × 111,839.06
4. Step 4: Simplify right side
   75,429.75x = 12,507,975,900.88
5. Step 5: Solve for x
   x = 12,507,975,900.88/75,429.75
6. Step 6: Final answer
   x = 165,822.85