Finding the Third Proportional to 669,978 and 1,460,430

Step by Step Solution

1. Step 1: Write the proportion equation
   669,978 : 1,460,430 = 1,460,430 : x
2. Step 2: Convert to fraction form
   669,978/1,460,430 = 1,460,430/x
3. Step 3: Cross multiply
   669,978x = 1,460,430 × 1,460,430
4. Step 4: Simplify right side
   669,978x = 2,132,855,784,900
5. Step 5: Solve for x
   x = 2,132,855,784,900/669,978
6. Step 6: Final answer
   x = 3,183,471.38