Finding the Third Proportional to 4,259,808 and 9,169,158

Step by Step Solution

1. Step 1: Write the proportion equation
   4,259,808 : 9,169,158 = 9,169,158 : x
2. Step 2: Convert to fraction form
   4,259,808/9,169,158 = 9,169,158/x
3. Step 3: Cross multiply
   4,259,808x = 9,169,158 × 9,169,158
4. Step 4: Simplify right side
   4,259,808x = 84,073,458,428,964
5. Step 5: Solve for x
   x = 84,073,458,428,964/4,259,808
6. Step 6: Final answer
   x = 19,736,443.15