Finding the Third Proportional to 4,494,471 and 9,905,109

Step by Step Solution

1. Step 1: Write the proportion equation
   4,494,471 : 9,905,109 = 9,905,109 : x
2. Step 2: Convert to fraction form
   4,494,471/9,905,109 = 9,905,109/x
3. Step 3: Cross multiply
   4,494,471x = 9,905,109 × 9,905,109
4. Step 4: Simplify right side
   4,494,471x = 98,111,184,301,881
5. Step 5: Solve for x
   x = 98,111,184,301,881/4,494,471
6. Step 6: Final answer
   x = 21,829,306.34