Finding the Third Proportional to 4,574,974 and 9,903,099

Step by Step Solution

1. Step 1: Write the proportion equation
   4,574,974 : 9,903,099 = 9,903,099 : x
2. Step 2: Convert to fraction form
   4,574,974/9,903,099 = 9,903,099/x
3. Step 3: Cross multiply
   4,574,974x = 9,903,099 × 9,903,099
4. Step 4: Simplify right side
   4,574,974x = 98,071,369,803,801
5. Step 5: Solve for x
   x = 98,071,369,803,801/4,574,974
6. Step 6: Final answer
   x = 21,436,486.81