Finding the Third Proportional to 307,720.50 and 451,596

Step by Step Solution

1. Step 1: Write the proportion equation
   307,720.50 : 451,596 = 451,596 : x
2. Step 2: Convert to fraction form
   307,720.50/451,596 = 451,596/x
3. Step 3: Cross multiply
   307,720.50x = 451,596 × 451,596
4. Step 4: Simplify right side
   307,720.50x = 203,938,947,216
5. Step 5: Solve for x
   x = 203,938,947,216/307,720.50
6. Step 6: Final answer
   x = 662,740.85