Finding the Third Proportional to 135,990 and 224,741.25

Step by Step Solution

1. Step 1: Write the proportion equation
   135,990 : 224,741.25 = 224,741.25 : x
2. Step 2: Convert to fraction form
   135,990/224,741.25 = 224,741.25/x
3. Step 3: Cross multiply
   135,990x = 224,741.25 × 224,741.25
4. Step 4: Simplify right side
   135,990x = 50,508,629,451.56
5. Step 5: Solve for x
   x = 50,508,629,451.56/135,990
6. Step 6: Final answer
   x = 371,414.29