Finding the Third Proportional to 252,499.78 and 554,056.03

Step by Step Solution

1. Step 1: Write the proportion equation
   252,499.78 : 554,056.03 = 554,056.03 : x
2. Step 2: Convert to fraction form
   252,499.78/554,056.03 = 554,056.03/x
3. Step 3: Cross multiply
   252,499.78x = 554,056.03 × 554,056.03
4. Step 4: Simplify right side
   252,499.78x = 306,978,085,764.50
5. Step 5: Solve for x
   x = 306,978,085,764.50/252,499.78
6. Step 6: Final answer
   x = 1,215,755.85