Finding the Third Proportional to 552,756 and 828,971.50

Step by Step Solution

1. Step 1: Write the proportion equation
   552,756 : 828,971.50 = 828,971.50 : x
2. Step 2: Convert to fraction form
   552,756/828,971.50 = 828,971.50/x
3. Step 3: Cross multiply
   552,756x = 828,971.50 × 828,971.50
4. Step 4: Simplify right side
   552,756x = 687,193,747,812.25
5. Step 5: Solve for x
   x = 687,193,747,812.25/552,756
6. Step 6: Final answer
   x = 1,243,213.55