Finding the Third Proportional to 128,881 and 197,173.50

Step by Step Solution

1. Step 1: Write the proportion equation
   128,881 : 197,173.50 = 197,173.50 : x
2. Step 2: Convert to fraction form
   128,881/197,173.50 = 197,173.50/x
3. Step 3: Cross multiply
   128,881x = 197,173.50 × 197,173.50
4. Step 4: Simplify right side
   128,881x = 38,877,389,102.25
5. Step 5: Solve for x
   x = 38,877,389,102.25/128,881
6. Step 6: Final answer
   x = 301,653.38