Finding the Third Proportional to 190,587 and 254,081.63

Step by Step Solution

1. Step 1: Write the proportion equation
   190,587 : 254,081.63 = 254,081.63 : x
2. Step 2: Convert to fraction form
   190,587/254,081.63 = 254,081.63/x
3. Step 3: Cross multiply
   190,587x = 254,081.63 × 254,081.63
4. Step 4: Simplify right side
   190,587x = 64,557,472,162.64
5. Step 5: Solve for x
   x = 64,557,472,162.64/190,587
6. Step 6: Final answer
   x = 338,729.67