Finding the Third Proportional to 435,435 and 659,722.50

Step by Step Solution

1. Step 1: Write the proportion equation
   435,435 : 659,722.50 = 659,722.50 : x
2. Step 2: Convert to fraction form
   435,435/659,722.50 = 659,722.50/x
3. Step 3: Cross multiply
   435,435x = 659,722.50 × 659,722.50
4. Step 4: Simplify right side
   435,435x = 435,233,777,006.25
5. Step 5: Solve for x
   x = 435,233,777,006.25/435,435
6. Step 6: Final answer
   x = 999,537.88