Finding the Third Proportional to 997,812 and 2,188,776

Step by Step Solution

1. Step 1: Write the proportion equation
   997,812 : 2,188,776 = 2,188,776 : x
2. Step 2: Convert to fraction form
   997,812/2,188,776 = 2,188,776/x
3. Step 3: Cross multiply
   997,812x = 2,188,776 × 2,188,776
4. Step 4: Simplify right side
   997,812x = 4,790,740,378,176
5. Step 5: Solve for x
   x = 4,790,740,378,176/997,812
6. Step 6: Final answer
   x = 4,801,245.50