Finding the Third Proportional to 465,144 and 700,438.50

Step by Step Solution

1. Step 1: Write the proportion equation
   465,144 : 700,438.50 = 700,438.50 : x
2. Step 2: Convert to fraction form
   465,144/700,438.50 = 700,438.50/x
3. Step 3: Cross multiply
   465,144x = 700,438.50 × 700,438.50
4. Step 4: Simplify right side
   465,144x = 490,614,092,282.25
5. Step 5: Solve for x
   x = 490,614,092,282.25/465,144
6. Step 6: Final answer
   x = 1,054,757.43