Finding the Third Proportional to 157,603.50 and 187,128

Step by Step Solution

1. Step 1: Write the proportion equation
   157,603.50 : 187,128 = 187,128 : x
2. Step 2: Convert to fraction form
   157,603.50/187,128 = 187,128/x
3. Step 3: Cross multiply
   157,603.50x = 187,128 × 187,128
4. Step 4: Simplify right side
   157,603.50x = 35,016,888,384
5. Step 5: Solve for x
   x = 35,016,888,384/157,603.50
6. Step 6: Final answer
   x = 222,183.44