Finding the Third Proportional to 10,499,589 and 21,727,458

Step by Step Solution

1. Step 1: Write the proportion equation
   10,499,589 : 21,727,458 = 21,727,458 : x
2. Step 2: Convert to fraction form
   10,499,589/21,727,458 = 21,727,458/x
3. Step 3: Cross multiply
   10,499,589x = 21,727,458 × 21,727,458
4. Step 4: Simplify right side
   10,499,589x = 472,082,431,141,764
5. Step 5: Solve for x
   x = 472,082,431,141,764/10,499,589
6. Step 6: Final answer
   x = 44,961,991.48