Finding the Third Proportional to 20,873,920 and 42,335,008

Step by Step Solution

1. Step 1: Write the proportion equation
   20,873,920 : 42,335,008 = 42,335,008 : x
2. Step 2: Convert to fraction form
   20,873,920/42,335,008 = 42,335,008/x
3. Step 3: Cross multiply
   20,873,920x = 42,335,008 × 42,335,008
4. Step 4: Simplify right side
   20,873,920x = 1,792,252,902,360,064
5. Step 5: Solve for x
   x = 1,792,252,902,360,064/20,873,920
6. Step 6: Final answer
   x = 85,860,868.60