Finding the Third Proportional to 123,660 and 174,690

Step by Step Solution

1. Step 1: Write the proportion equation
   123,660 : 174,690 = 174,690 : x
2. Step 2: Convert to fraction form
   123,660/174,690 = 174,690/x
3. Step 3: Cross multiply
   123,660x = 174,690 × 174,690
4. Step 4: Simplify right side
   123,660x = 30,516,596,100
5. Step 5: Solve for x
   x = 30,516,596,100/123,660
6. Step 6: Final answer
   x = 246,778.23