Finding the Third Proportional to 402,274.50 and 837,920

Step by Step Solution

1. Step 1: Write the proportion equation
   402,274.50 : 837,920 = 837,920 : x
2. Step 2: Convert to fraction form
   402,274.50/837,920 = 837,920/x
3. Step 3: Cross multiply
   402,274.50x = 837,920 × 837,920
4. Step 4: Simplify right side
   402,274.50x = 702,109,926,400
5. Step 5: Solve for x
   x = 702,109,926,400/402,274.50
6. Step 6: Final answer
   x = 1,745,350.32