Finding the Third Proportional to 113,434.50 and 154,147.50

Step by Step Solution

1. Step 1: Write the proportion equation
   113,434.50 : 154,147.50 = 154,147.50 : x
2. Step 2: Convert to fraction form
   113,434.50/154,147.50 = 154,147.50/x
3. Step 3: Cross multiply
   113,434.50x = 154,147.50 × 154,147.50
4. Step 4: Simplify right side
   113,434.50x = 23,761,451,756.25
5. Step 5: Solve for x
   x = 23,761,451,756.25/113,434.50
6. Step 6: Final answer
   x = 209,472.88