Finding the Third Proportional to 799,280 and 1,687,776

Step by Step Solution

1. Step 1: Write the proportion equation
   799,280 : 1,687,776 = 1,687,776 : x
2. Step 2: Convert to fraction form
   799,280/1,687,776 = 1,687,776/x
3. Step 3: Cross multiply
   799,280x = 1,687,776 × 1,687,776
4. Step 4: Simplify right side
   799,280x = 2,848,587,826,176
5. Step 5: Solve for x
   x = 2,848,587,826,176/799,280
6. Step 6: Final answer
   x = 3,563,942.33