Finding the Third Proportional to 132,403 and 312,290.50

Step by Step Solution

1. Step 1: Write the proportion equation
   132,403 : 312,290.50 = 312,290.50 : x
2. Step 2: Convert to fraction form
   132,403/312,290.50 = 312,290.50/x
3. Step 3: Cross multiply
   132,403x = 312,290.50 × 312,290.50
4. Step 4: Simplify right side
   132,403x = 97,525,356,390.25
5. Step 5: Solve for x
   x = 97,525,356,390.25/132,403
6. Step 6: Final answer
   x = 736,579.66