Finding the Third Proportional to 557,200.50 and 837,056.25

Step by Step Solution

1. Step 1: Write the proportion equation
   557,200.50 : 837,056.25 = 837,056.25 : x
2. Step 2: Convert to fraction form
   557,200.50/837,056.25 = 837,056.25/x
3. Step 3: Cross multiply
   557,200.50x = 837,056.25 × 837,056.25
4. Step 4: Simplify right side
   557,200.50x = 700,663,165,664.06
5. Step 5: Solve for x
   x = 700,663,165,664.06/557,200.50
6. Step 6: Final answer
   x = 1,257,470.45