Finding the Third Proportional to 698,056 and 1,107,128

Step by Step Solution

1. Step 1: Write the proportion equation
   698,056 : 1,107,128 = 1,107,128 : x
2. Step 2: Convert to fraction form
   698,056/1,107,128 = 1,107,128/x
3. Step 3: Cross multiply
   698,056x = 1,107,128 × 1,107,128
4. Step 4: Simplify right side
   698,056x = 1,225,732,408,384
5. Step 5: Solve for x
   x = 1,225,732,408,384/698,056
6. Step 6: Final answer
   x = 1,755,922.75