Finding the Third Proportional to 138,480.50 and 226,105.50

Step by Step Solution

1. Step 1: Write the proportion equation
   138,480.50 : 226,105.50 = 226,105.50 : x
2. Step 2: Convert to fraction form
   138,480.50/226,105.50 = 226,105.50/x
3. Step 3: Cross multiply
   138,480.50x = 226,105.50 × 226,105.50
4. Step 4: Simplify right side
   138,480.50x = 51,123,697,130.25
5. Step 5: Solve for x
   x = 51,123,697,130.25/138,480.50
6. Step 6: Final answer
   x = 369,176.14