Finding the Third Proportional to 413,475 and 663,405.75

Step by Step Solution

1. Step 1: Write the proportion equation
   413,475 : 663,405.75 = 663,405.75 : x
2. Step 2: Convert to fraction form
   413,475/663,405.75 = 663,405.75/x
3. Step 3: Cross multiply
   413,475x = 663,405.75 × 663,405.75
4. Step 4: Simplify right side
   413,475x = 440,107,189,133.06
5. Step 5: Solve for x
   x = 440,107,189,133.06/413,475
6. Step 6: Final answer
   x = 1,064,410.64