Finding the Third Proportional to 131,619 and 191,452.50

Step by Step Solution

1. Step 1: Write the proportion equation
   131,619 : 191,452.50 = 191,452.50 : x
2. Step 2: Convert to fraction form
   131,619/191,452.50 = 191,452.50/x
3. Step 3: Cross multiply
   131,619x = 191,452.50 × 191,452.50
4. Step 4: Simplify right side
   131,619x = 36,654,059,756.25
5. Step 5: Solve for x
   x = 36,654,059,756.25/131,619
6. Step 6: Final answer
   x = 278,486.08