Finding the Third Proportional to 402,289.50 and 794,312

Step by Step Solution

1. Step 1: Write the proportion equation
   402,289.50 : 794,312 = 794,312 : x
2. Step 2: Convert to fraction form
   402,289.50/794,312 = 794,312/x
3. Step 3: Cross multiply
   402,289.50x = 794,312 × 794,312
4. Step 4: Simplify right side
   402,289.50x = 630,931,553,344
5. Step 5: Solve for x
   x = 630,931,553,344/402,289.50
6. Step 6: Final answer
   x = 1,568,352.03