Finding the Third Proportional to 111,412.50 and 164,661

Step by Step Solution

1. Step 1: Write the proportion equation
   111,412.50 : 164,661 = 164,661 : x
2. Step 2: Convert to fraction form
   111,412.50/164,661 = 164,661/x
3. Step 3: Cross multiply
   111,412.50x = 164,661 × 164,661
4. Step 4: Simplify right side
   111,412.50x = 27,113,244,921
5. Step 5: Solve for x
   x = 27,113,244,921/111,412.50
6. Step 6: Final answer
   x = 243,359.09