Finding the Third Proportional to 132,779.50 and 203,040

Step by Step Solution

1. Step 1: Write the proportion equation
   132,779.50 : 203,040 = 203,040 : x
2. Step 2: Convert to fraction form
   132,779.50/203,040 = 203,040/x
3. Step 3: Cross multiply
   132,779.50x = 203,040 × 203,040
4. Step 4: Simplify right side
   132,779.50x = 41,225,241,600
5. Step 5: Solve for x
   x = 41,225,241,600/132,779.50
6. Step 6: Final answer
   x = 310,478.96