Finding the Third Proportional to 252,477 and 553,243.50

Step by Step Solution

1. Step 1: Write the proportion equation
   252,477 : 553,243.50 = 553,243.50 : x
2. Step 2: Convert to fraction form
   252,477/553,243.50 = 553,243.50/x
3. Step 3: Cross multiply
   252,477x = 553,243.50 × 553,243.50
4. Step 4: Simplify right side
   252,477x = 306,078,370,292.25
5. Step 5: Solve for x
   x = 306,078,370,292.25/252,477
6. Step 6: Final answer
   x = 1,212,301.99