Finding the Third Proportional to 112,554 and 171,690

Step by Step Solution

1. Step 1: Write the proportion equation
   112,554 : 171,690 = 171,690 : x
2. Step 2: Convert to fraction form
   112,554/171,690 = 171,690/x
3. Step 3: Cross multiply
   112,554x = 171,690 × 171,690
4. Step 4: Simplify right side
   112,554x = 29,477,456,100
5. Step 5: Solve for x
   x = 29,477,456,100/112,554
6. Step 6: Final answer
   x = 261,896.12