Finding the Third Proportional to 131,590.50 and 204,129

Step by Step Solution

1. Step 1: Write the proportion equation
   131,590.50 : 204,129 = 204,129 : x
2. Step 2: Convert to fraction form
   131,590.50/204,129 = 204,129/x
3. Step 3: Cross multiply
   131,590.50x = 204,129 × 204,129
4. Step 4: Simplify right side
   131,590.50x = 41,668,648,641
5. Step 5: Solve for x
   x = 41,668,648,641/131,590.50
6. Step 6: Final answer
   x = 316,653.93