Finding the Third Proportional to 314,901 and 618,880.50

Step by Step Solution

1. Step 1: Write the proportion equation
   314,901 : 618,880.50 = 618,880.50 : x
2. Step 2: Convert to fraction form
   314,901/618,880.50 = 618,880.50/x
3. Step 3: Cross multiply
   314,901x = 618,880.50 × 618,880.50
4. Step 4: Simplify right side
   314,901x = 383,013,073,280.25
5. Step 5: Solve for x
   x = 383,013,073,280.25/314,901
6. Step 6: Final answer
   x = 1,216,296.78