Finding the Third Proportional to 9,992,784 and 21,783,282

Step by Step Solution

1. Step 1: Write the proportion equation
   9,992,784 : 21,783,282 = 21,783,282 : x
2. Step 2: Convert to fraction form
   9,992,784/21,783,282 = 21,783,282/x
3. Step 3: Cross multiply
   9,992,784x = 21,783,282 × 21,783,282
4. Step 4: Simplify right side
   9,992,784x = 474,511,374,691,524
5. Step 5: Solve for x
   x = 474,511,374,691,524/9,992,784
6. Step 6: Final answer
   x = 47,485,402.94