Finding the Third Proportional to 21,008,974 and 45,698,912

Step by Step Solution

1. Step 1: Write the proportion equation
   21,008,974 : 45,698,912 = 45,698,912 : x
2. Step 2: Convert to fraction form
   21,008,974/45,698,912 = 45,698,912/x
3. Step 3: Cross multiply
   21,008,974x = 45,698,912 × 45,698,912
4. Step 4: Simplify right side
   21,008,974x = 2,088,390,557,983,744
5. Step 5: Solve for x
   x = 2,088,390,557,983,744/21,008,974
6. Step 6: Final answer
   x = 99,404,690.49