Finding the Third Proportional to 3,630,672 and 7,821,512

Step by Step Solution

1. Step 1: Write the proportion equation
   3,630,672 : 7,821,512 = 7,821,512 : x
2. Step 2: Convert to fraction form
   3,630,672/7,821,512 = 7,821,512/x
3. Step 3: Cross multiply
   3,630,672x = 7,821,512 × 7,821,512
4. Step 4: Simplify right side
   3,630,672x = 61,176,049,966,144
5. Step 5: Solve for x
   x = 61,176,049,966,144/3,630,672
6. Step 6: Final answer
   x = 16,849,787.03