Finding the Third Proportional to 276,069 and 412,453.50

Step by Step Solution

1. Step 1: Write the proportion equation
   276,069 : 412,453.50 = 412,453.50 : x
2. Step 2: Convert to fraction form
   276,069/412,453.50 = 412,453.50/x
3. Step 3: Cross multiply
   276,069x = 412,453.50 × 412,453.50
4. Step 4: Simplify right side
   276,069x = 170,117,889,662.25
5. Step 5: Solve for x
   x = 170,117,889,662.25/276,069
6. Step 6: Final answer
   x = 616,215.11