Finding the Third Proportional to 639,284.50 and 970,591

Step by Step Solution

1. Step 1: Write the proportion equation
   639,284.50 : 970,591 = 970,591 : x
2. Step 2: Convert to fraction form
   639,284.50/970,591 = 970,591/x
3. Step 3: Cross multiply
   639,284.50x = 970,591 × 970,591
4. Step 4: Simplify right side
   639,284.50x = 942,046,889,281
5. Step 5: Solve for x
   x = 942,046,889,281/639,284.50
6. Step 6: Final answer
   x = 1,473,595.70