Finding the Third Proportional to 554,545.50 and 828,122

Step by Step Solution

1. Step 1: Write the proportion equation
   554,545.50 : 828,122 = 828,122 : x
2. Step 2: Convert to fraction form
   554,545.50/828,122 = 828,122/x
3. Step 3: Cross multiply
   554,545.50x = 828,122 × 828,122
4. Step 4: Simplify right side
   554,545.50x = 685,786,046,884
5. Step 5: Solve for x
   x = 685,786,046,884/554,545.50
6. Step 6: Final answer
   x = 1,236,663.26