Finding the Third Proportional to 402,271.50 and 837,915

Step by Step Solution

1. Step 1: Write the proportion equation
   402,271.50 : 837,915 = 837,915 : x
2. Step 2: Convert to fraction form
   402,271.50/837,915 = 837,915/x
3. Step 3: Cross multiply
   402,271.50x = 837,915 × 837,915
4. Step 4: Simplify right side
   402,271.50x = 702,101,547,225
5. Step 5: Solve for x
   x = 702,101,547,225/402,271.50
6. Step 6: Final answer
   x = 1,745,342.50