Finding the Third Proportional to 248,665 and 375,065.50

Step by Step Solution

1. Step 1: Write the proportion equation
   248,665 : 375,065.50 = 375,065.50 : x
2. Step 2: Convert to fraction form
   248,665/375,065.50 = 375,065.50/x
3. Step 3: Cross multiply
   248,665x = 375,065.50 × 375,065.50
4. Step 4: Simplify right side
   248,665x = 140,674,129,290.25
5. Step 5: Solve for x
   x = 140,674,129,290.25/248,665
6. Step 6: Final answer
   x = 565,717.45