Finding the Third Proportional to 657,990 and 1,428,732

Step by Step Solution

1. Step 1: Write the proportion equation
   657,990 : 1,428,732 = 1,428,732 : x
2. Step 2: Convert to fraction form
   657,990/1,428,732 = 1,428,732/x
3. Step 3: Cross multiply
   657,990x = 1,428,732 × 1,428,732
4. Step 4: Simplify right side
   657,990x = 2,041,275,127,824
5. Step 5: Solve for x
   x = 2,041,275,127,824/657,990
6. Step 6: Final answer
   x = 3,102,288.98