Finding the Third Proportional to 435,424.50 and 659,700

Step by Step Solution

1. Step 1: Write the proportion equation
   435,424.50 : 659,700 = 659,700 : x
2. Step 2: Convert to fraction form
   435,424.50/659,700 = 659,700/x
3. Step 3: Cross multiply
   435,424.50x = 659,700 × 659,700
4. Step 4: Simplify right side
   435,424.50x = 435,204,090,000
5. Step 5: Solve for x
   x = 435,204,090,000/435,424.50
6. Step 6: Final answer
   x = 999,493.80