Finding the Third Proportional to 549,321.75 and 823,446

Step by Step Solution

1. Step 1: Write the proportion equation
   549,321.75 : 823,446 = 823,446 : x
2. Step 2: Convert to fraction form
   549,321.75/823,446 = 823,446/x
3. Step 3: Cross multiply
   549,321.75x = 823,446 × 823,446
4. Step 4: Simplify right side
   549,321.75x = 678,063,314,916
5. Step 5: Solve for x
   x = 678,063,314,916/549,321.75
6. Step 6: Final answer
   x = 1,234,364.59