Finding the Third Proportional to 435,909 and 654,298.50

Step by Step Solution

1. Step 1: Write the proportion equation
   435,909 : 654,298.50 = 654,298.50 : x
2. Step 2: Convert to fraction form
   435,909/654,298.50 = 654,298.50/x
3. Step 3: Cross multiply
   435,909x = 654,298.50 × 654,298.50
4. Step 4: Simplify right side
   435,909x = 428,106,527,102.25
5. Step 5: Solve for x
   x = 428,106,527,102.25/435,909
6. Step 6: Final answer
   x = 982,100.68