Finding the Third Proportional to 453,853.50 and 616,680

Step by Step Solution

1. Step 1: Write the proportion equation
   453,853.50 : 616,680 = 616,680 : x
2. Step 2: Convert to fraction form
   453,853.50/616,680 = 616,680/x
3. Step 3: Cross multiply
   453,853.50x = 616,680 × 616,680
4. Step 4: Simplify right side
   453,853.50x = 380,294,222,400
5. Step 5: Solve for x
   x = 380,294,222,400/453,853.50
6. Step 6: Final answer
   x = 837,922.86