Finding the Third Proportional to 326,077 and 486,107.50

Step by Step Solution

1. Step 1: Write the proportion equation
   326,077 : 486,107.50 = 486,107.50 : x
2. Step 2: Convert to fraction form
   326,077/486,107.50 = 486,107.50/x
3. Step 3: Cross multiply
   326,077x = 486,107.50 × 486,107.50
4. Step 4: Simplify right side
   326,077x = 236,300,501,556.25
5. Step 5: Solve for x
   x = 236,300,501,556.25/326,077
6. Step 6: Final answer
   x = 724,677.00