Finding the Third Proportional to 267,022.50 and 413,318

Step by Step Solution

1. Step 1: Write the proportion equation
   267,022.50 : 413,318 = 413,318 : x
2. Step 2: Convert to fraction form
   267,022.50/413,318 = 413,318/x
3. Step 3: Cross multiply
   267,022.50x = 413,318 × 413,318
4. Step 4: Simplify right side
   267,022.50x = 170,831,769,124
5. Step 5: Solve for x
   x = 170,831,769,124/267,022.50
6. Step 6: Final answer
   x = 639,765.45