Finding the Third Proportional to 453,699 and 616,540.50

Step by Step Solution

1. Step 1: Write the proportion equation
   453,699 : 616,540.50 = 616,540.50 : x
2. Step 2: Convert to fraction form
   453,699/616,540.50 = 616,540.50/x
3. Step 3: Cross multiply
   453,699x = 616,540.50 × 616,540.50
4. Step 4: Simplify right side
   453,699x = 380,122,188,140.25
5. Step 5: Solve for x
   x = 380,122,188,140.25/453,699
6. Step 6: Final answer
   x = 837,829.02