Finding the Third Proportional to 231,780 and 481,324.50

Step by Step Solution

1. Step 1: Write the proportion equation
   231,780 : 481,324.50 = 481,324.50 : x
2. Step 2: Convert to fraction form
   231,780/481,324.50 = 481,324.50/x
3. Step 3: Cross multiply
   231,780x = 481,324.50 × 481,324.50
4. Step 4: Simplify right side
   231,780x = 231,673,274,300.25
5. Step 5: Solve for x
   x = 231,673,274,300.25/231,780
6. Step 6: Final answer
   x = 999,539.54