Finding the Third Proportional to 691,181 and 1,036,772

Step by Step Solution

1. Step 1: Write the proportion equation
   691,181 : 1,036,772 = 1,036,772 : x
2. Step 2: Convert to fraction form
   691,181/1,036,772 = 1,036,772/x
3. Step 3: Cross multiply
   691,181x = 1,036,772 × 1,036,772
4. Step 4: Simplify right side
   691,181x = 1,074,896,179,984
5. Step 5: Solve for x
   x = 1,074,896,179,984/691,181
6. Step 6: Final answer
   x = 1,555,158.75