Finding the Third Proportional to 111,267 and 164,455

Step by Step Solution

1. Step 1: Write the proportion equation
   111,267 : 164,455 = 164,455 : x
2. Step 2: Convert to fraction form
   111,267/164,455 = 164,455/x
3. Step 3: Cross multiply
   111,267x = 164,455 × 164,455
4. Step 4: Simplify right side
   111,267x = 27,045,447,025
5. Step 5: Solve for x
   x = 27,045,447,025/111,267
6. Step 6: Final answer
   x = 243,068.00