Finding the Third Proportional to 554,553 and 828,133.50

Step by Step Solution

1. Step 1: Write the proportion equation
   554,553 : 828,133.50 = 828,133.50 : x
2. Step 2: Convert to fraction form
   554,553/828,133.50 = 828,133.50/x
3. Step 3: Cross multiply
   554,553x = 828,133.50 × 828,133.50
4. Step 4: Simplify right side
   554,553x = 685,805,093,822.25
5. Step 5: Solve for x
   x = 685,805,093,822.25/554,553
6. Step 6: Final answer
   x = 1,236,680.88