Finding the Third Proportional to 574,576.50 and 909,378

Step by Step Solution

1. Step 1: Write the proportion equation
   574,576.50 : 909,378 = 909,378 : x
2. Step 2: Convert to fraction form
   574,576.50/909,378 = 909,378/x
3. Step 3: Cross multiply
   574,576.50x = 909,378 × 909,378
4. Step 4: Simplify right side
   574,576.50x = 826,968,346,884
5. Step 5: Solve for x
   x = 826,968,346,884/574,576.50
6. Step 6: Final answer
   x = 1,439,265.87