Finding the Third Proportional to 122,175 and 197,143.50

Step by Step Solution

1. Step 1: Write the proportion equation
   122,175 : 197,143.50 = 197,143.50 : x
2. Step 2: Convert to fraction form
   122,175/197,143.50 = 197,143.50/x
3. Step 3: Cross multiply
   122,175x = 197,143.50 × 197,143.50
4. Step 4: Simplify right side
   122,175x = 38,865,559,592.25
5. Step 5: Solve for x
   x = 38,865,559,592.25/122,175
6. Step 6: Final answer
   x = 318,113.85