Finding the Third Proportional to 691,288 and 1,072,896

Step by Step Solution

1. Step 1: Write the proportion equation
   691,288 : 1,072,896 = 1,072,896 : x
2. Step 2: Convert to fraction form
   691,288/1,072,896 = 1,072,896/x
3. Step 3: Cross multiply
   691,288x = 1,072,896 × 1,072,896
4. Step 4: Simplify right side
   691,288x = 1,151,105,826,816
5. Step 5: Solve for x
   x = 1,151,105,826,816/691,288
6. Step 6: Final answer
   x = 1,665,161.01