Finding the Third Proportional to 4,881,924 and 10,209,996

Step by Step Solution

1. Step 1: Write the proportion equation
   4,881,924 : 10,209,996 = 10,209,996 : x
2. Step 2: Convert to fraction form
   4,881,924/10,209,996 = 10,209,996/x
3. Step 3: Cross multiply
   4,881,924x = 10,209,996 × 10,209,996
4. Step 4: Simplify right side
   4,881,924x = 104,244,018,320,016
5. Step 5: Solve for x
   x = 104,244,018,320,016/4,881,924
6. Step 6: Final answer
   x = 21,353,060.46