Finding the Third Proportional to 579,558 and 852,571.50

Step by Step Solution

1. Step 1: Write the proportion equation
   579,558 : 852,571.50 = 852,571.50 : x
2. Step 2: Convert to fraction form
   579,558/852,571.50 = 852,571.50/x
3. Step 3: Cross multiply
   579,558x = 852,571.50 × 852,571.50
4. Step 4: Simplify right side
   579,558x = 726,878,162,612.25
5. Step 5: Solve for x
   x = 726,878,162,612.25/579,558
6. Step 6: Final answer
   x = 1,254,193.99