Finding the Third Proportional to 661,980 and 1,428,912

Step by Step Solution

1. Step 1: Write the proportion equation
   661,980 : 1,428,912 = 1,428,912 : x
2. Step 2: Convert to fraction form
   661,980/1,428,912 = 1,428,912/x
3. Step 3: Cross multiply
   661,980x = 1,428,912 × 1,428,912
4. Step 4: Simplify right side
   661,980x = 2,041,789,503,744
5. Step 5: Solve for x
   x = 2,041,789,503,744/661,980
6. Step 6: Final answer
   x = 3,084,367.36