Finding the Third Proportional to 435,019.50 and 612,612

Step by Step Solution

1. Step 1: Write the proportion equation
   435,019.50 : 612,612 = 612,612 : x
2. Step 2: Convert to fraction form
   435,019.50/612,612 = 612,612/x
3. Step 3: Cross multiply
   435,019.50x = 612,612 × 612,612
4. Step 4: Simplify right side
   435,019.50x = 375,293,462,544
5. Step 5: Solve for x
   x = 375,293,462,544/435,019.50
6. Step 6: Final answer
   x = 862,704.92