Finding the Third Proportional to 581,223 and 1,231,585.50

Step by Step Solution

1. Step 1: Write the proportion equation
   581,223 : 1,231,585.50 = 1,231,585.50 : x
2. Step 2: Convert to fraction form
   581,223/1,231,585.50 = 1,231,585.50/x
3. Step 3: Cross multiply
   581,223x = 1,231,585.50 × 1,231,585.50
4. Step 4: Simplify right side
   581,223x = 1,516,802,843,810.25
5. Step 5: Solve for x
   x = 1,516,802,843,810.25/581,223
6. Step 6: Final answer
   x = 2,609,674.50