Finding the Third Proportional to 131,196 and 206,254.50

Step by Step Solution

1. Step 1: Write the proportion equation
   131,196 : 206,254.50 = 206,254.50 : x
2. Step 2: Convert to fraction form
   131,196/206,254.50 = 206,254.50/x
3. Step 3: Cross multiply
   131,196x = 206,254.50 × 206,254.50
4. Step 4: Simplify right side
   131,196x = 42,540,918,770.25
5. Step 5: Solve for x
   x = 42,540,918,770.25/131,196
6. Step 6: Final answer
   x = 324,254.69