Finding the Third Proportional to 252,439.50 and 552,399

Step by Step Solution

1. Step 1: Write the proportion equation
   252,439.50 : 552,399 = 552,399 : x
2. Step 2: Convert to fraction form
   252,439.50/552,399 = 552,399/x
3. Step 3: Cross multiply
   252,439.50x = 552,399 × 552,399
4. Step 4: Simplify right side
   252,439.50x = 305,144,655,201
5. Step 5: Solve for x
   x = 305,144,655,201/252,439.50
6. Step 6: Final answer
   x = 1,208,783.31