Finding the Third Proportional to 582,759 and 900,022.50

Step by Step Solution

1. Step 1: Write the proportion equation
   582,759 : 900,022.50 = 900,022.50 : x
2. Step 2: Convert to fraction form
   582,759/900,022.50 = 900,022.50/x
3. Step 3: Cross multiply
   582,759x = 900,022.50 × 900,022.50
4. Step 4: Simplify right side
   582,759x = 810,040,500,506.25
5. Step 5: Solve for x
   x = 810,040,500,506.25/582,759
6. Step 6: Final answer
   x = 1,390,009.42