Finding the Third Proportional to 129,303 and 193,171.50

Step by Step Solution

1. Step 1: Write the proportion equation
   129,303 : 193,171.50 = 193,171.50 : x
2. Step 2: Convert to fraction form
   129,303/193,171.50 = 193,171.50/x
3. Step 3: Cross multiply
   129,303x = 193,171.50 × 193,171.50
4. Step 4: Simplify right side
   129,303x = 37,315,228,412.25
5. Step 5: Solve for x
   x = 37,315,228,412.25/129,303
6. Step 6: Final answer
   x = 288,587.49