Finding the Third Proportional to 691,199 and 1,036,799

Step by Step Solution

1. Step 1: Write the proportion equation
   691,199 : 1,036,799 = 1,036,799 : x
2. Step 2: Convert to fraction form
   691,199/1,036,799 = 1,036,799/x
3. Step 3: Cross multiply
   691,199x = 1,036,799 × 1,036,799
4. Step 4: Simplify right side
   691,199x = 1,074,952,166,401
5. Step 5: Solve for x
   x = 1,074,952,166,401/691,199
6. Step 6: Final answer
   x = 1,555,199.25