Finding the Third Proportional to 259,843.50 and 540,337.50

Step by Step Solution

1. Step 1: Write the proportion equation
   259,843.50 : 540,337.50 = 540,337.50 : x
2. Step 2: Convert to fraction form
   259,843.50/540,337.50 = 540,337.50/x
3. Step 3: Cross multiply
   259,843.50x = 540,337.50 × 540,337.50
4. Step 4: Simplify right side
   259,843.50x = 291,964,613,906.25
5. Step 5: Solve for x
   x = 291,964,613,906.25/259,843.50
6. Step 6: Final answer
   x = 1,123,617.15