Finding the Third Proportional to 435,369 and 655,618.50

Step by Step Solution

1. Step 1: Write the proportion equation
   435,369 : 655,618.50 = 655,618.50 : x
2. Step 2: Convert to fraction form
   435,369/655,618.50 = 655,618.50/x
3. Step 3: Cross multiply
   435,369x = 655,618.50 × 655,618.50
4. Step 4: Simplify right side
   435,369x = 429,835,617,542.25
5. Step 5: Solve for x
   x = 429,835,617,542.25/435,369
6. Step 6: Final answer
   x = 987,290.36