Finding the Third Proportional to 124,171 and 190,258.50

Step by Step Solution

1. Step 1: Write the proportion equation
   124,171 : 190,258.50 = 190,258.50 : x
2. Step 2: Convert to fraction form
   124,171/190,258.50 = 190,258.50/x
3. Step 3: Cross multiply
   124,171x = 190,258.50 × 190,258.50
4. Step 4: Simplify right side
   124,171x = 36,198,296,822.25
5. Step 5: Solve for x
   x = 36,198,296,822.25/124,171
6. Step 6: Final answer
   x = 291,519.73