Finding the Third Proportional to 547,173 and 818,563.50

Step by Step Solution

1. Step 1: Write the proportion equation
   547,173 : 818,563.50 = 818,563.50 : x
2. Step 2: Convert to fraction form
   547,173/818,563.50 = 818,563.50/x
3. Step 3: Cross multiply
   547,173x = 818,563.50 × 818,563.50
4. Step 4: Simplify right side
   547,173x = 670,046,203,532.25
5. Step 5: Solve for x
   x = 670,046,203,532.25/547,173
6. Step 6: Final answer
   x = 1,224,560.06