Finding the Third Proportional to 111,699 and 165,361.50

Step by Step Solution

1. Step 1: Write the proportion equation
   111,699 : 165,361.50 = 165,361.50 : x
2. Step 2: Convert to fraction form
   111,699/165,361.50 = 165,361.50/x
3. Step 3: Cross multiply
   111,699x = 165,361.50 × 165,361.50
4. Step 4: Simplify right side
   111,699x = 27,344,425,682.25
5. Step 5: Solve for x
   x = 27,344,425,682.25/111,699
6. Step 6: Final answer
   x = 244,804.57