Finding the Third Proportional to 129,150 and 193,855.50

Step by Step Solution

1. Step 1: Write the proportion equation
   129,150 : 193,855.50 = 193,855.50 : x
2. Step 2: Convert to fraction form
   129,150/193,855.50 = 193,855.50/x
3. Step 3: Cross multiply
   129,150x = 193,855.50 × 193,855.50
4. Step 4: Simplify right side
   129,150x = 37,579,954,880.25
5. Step 5: Solve for x
   x = 37,579,954,880.25/129,150
6. Step 6: Final answer
   x = 290,979.13