Finding the Third Proportional to 977,806 and 2,118,412

Step by Step Solution

1. Step 1: Write the proportion equation
   977,806 : 2,118,412 = 2,118,412 : x
2. Step 2: Convert to fraction form
   977,806/2,118,412 = 2,118,412/x
3. Step 3: Cross multiply
   977,806x = 2,118,412 × 2,118,412
4. Step 4: Simplify right side
   977,806x = 4,487,669,401,744
5. Step 5: Solve for x
   x = 4,487,669,401,744/977,806
6. Step 6: Final answer
   x = 4,589,529.42