Finding the Third Proportional to 326,742.40 and 707,766.89

Step by Step Solution

1. Step 1: Write the proportion equation
   326,742.40 : 707,766.89 = 707,766.89 : x
2. Step 2: Convert to fraction form
   326,742.40/707,766.89 = 707,766.89/x
3. Step 3: Cross multiply
   326,742.40x = 707,766.89 × 707,766.89
4. Step 4: Simplify right side
   326,742.40x = 500,933,971,464.98
5. Step 5: Solve for x
   x = 500,933,971,464.98/326,742.40
6. Step 6: Final answer
   x = 1,533,115.92