Finding the Third Proportional to 557,613 and 886,153.50

Step by Step Solution

1. Step 1: Write the proportion equation
   557,613 : 886,153.50 = 886,153.50 : x
2. Step 2: Convert to fraction form
   557,613/886,153.50 = 886,153.50/x
3. Step 3: Cross multiply
   557,613x = 886,153.50 × 886,153.50
4. Step 4: Simplify right side
   557,613x = 785,268,025,562.25
5. Step 5: Solve for x
   x = 785,268,025,562.25/557,613
6. Step 6: Final answer
   x = 1,408,267.07