Finding the Third Proportional to 248,622 and 545,632.50

Step by Step Solution

1. Step 1: Write the proportion equation
   248,622 : 545,632.50 = 545,632.50 : x
2. Step 2: Convert to fraction form
   248,622/545,632.50 = 545,632.50/x
3. Step 3: Cross multiply
   248,622x = 545,632.50 × 545,632.50
4. Step 4: Simplify right side
   248,622x = 297,714,825,056.25
5. Step 5: Solve for x
   x = 297,714,825,056.25/248,622
6. Step 6: Final answer
   x = 1,197,459.70