Finding the Third Proportional to 10,860,339 and 21,446,550

Step by Step Solution

1. Step 1: Write the proportion equation
   10,860,339 : 21,446,550 = 21,446,550 : x
2. Step 2: Convert to fraction form
   10,860,339/21,446,550 = 21,446,550/x
3. Step 3: Cross multiply
   10,860,339x = 21,446,550 × 21,446,550
4. Step 4: Simplify right side
   10,860,339x = 459,954,506,902,500
5. Step 5: Solve for x
   x = 459,954,506,902,500/10,860,339
6. Step 6: Final answer
   x = 42,351,763.32