Finding the Third Proportional to 122,107.50 and 188,697

Step by Step Solution

1. Step 1: Write the proportion equation
   122,107.50 : 188,697 = 188,697 : x
2. Step 2: Convert to fraction form
   122,107.50/188,697 = 188,697/x
3. Step 3: Cross multiply
   122,107.50x = 188,697 × 188,697
4. Step 4: Simplify right side
   122,107.50x = 35,606,557,809
5. Step 5: Solve for x
   x = 35,606,557,809/122,107.50
6. Step 6: Final answer
   x = 291,600.09