Finding the Third Proportional to 1,157,760 and 1,789,128

Step by Step Solution

1. Step 1: Write the proportion equation
   1,157,760 : 1,789,128 = 1,789,128 : x
2. Step 2: Convert to fraction form
   1,157,760/1,789,128 = 1,789,128/x
3. Step 3: Cross multiply
   1,157,760x = 1,789,128 × 1,789,128
4. Step 4: Simplify right side
   1,157,760x = 3,200,979,000,384
5. Step 5: Solve for x
   x = 3,200,979,000,384/1,157,760
6. Step 6: Final answer
   x = 2,764,803.59