Finding the Third Proportional to 252,682.50 and 552,840

Step by Step Solution

1. Step 1: Write the proportion equation
   252,682.50 : 552,840 = 552,840 : x
2. Step 2: Convert to fraction form
   252,682.50/552,840 = 552,840/x
3. Step 3: Cross multiply
   252,682.50x = 552,840 × 552,840
4. Step 4: Simplify right side
   252,682.50x = 305,632,065,600
5. Step 5: Solve for x
   x = 305,632,065,600/252,682.50
6. Step 6: Final answer
   x = 1,209,549.79