Finding the Third Proportional to 583,281 and 899,797.50

Step by Step Solution

1. Step 1: Write the proportion equation
   583,281 : 899,797.50 = 899,797.50 : x
2. Step 2: Convert to fraction form
   583,281/899,797.50 = 899,797.50/x
3. Step 3: Cross multiply
   583,281x = 899,797.50 × 899,797.50
4. Step 4: Simplify right side
   583,281x = 809,635,541,006.25
5. Step 5: Solve for x
   x = 809,635,541,006.25/583,281
6. Step 6: Final answer
   x = 1,388,071.17