Finding the Third Proportional to 21,824,389 and 30,345,069

Step by Step Solution

1. Step 1: Write the proportion equation
   21,824,389 : 30,345,069 = 30,345,069 : x
2. Step 2: Convert to fraction form
   21,824,389/30,345,069 = 30,345,069/x
3. Step 3: Cross multiply
   21,824,389x = 30,345,069 × 30,345,069
4. Step 4: Simplify right side
   21,824,389x = 920,823,212,614,761
5. Step 5: Solve for x
   x = 920,823,212,614,761/21,824,389
6. Step 6: Final answer
   x = 42,192,393.68