Finding the Third Proportional to 301,016 and 409,997.50

Step by Step Solution

1. Step 1: Write the proportion equation
   301,016 : 409,997.50 = 409,997.50 : x
2. Step 2: Convert to fraction form
   301,016/409,997.50 = 409,997.50/x
3. Step 3: Cross multiply
   301,016x = 409,997.50 × 409,997.50
4. Step 4: Simplify right side
   301,016x = 168,097,950,006.25
5. Step 5: Solve for x
   x = 168,097,950,006.25/301,016
6. Step 6: Final answer
   x = 558,435.27